158 results on '"Sen, Alok"'
Search Results
2. National prevalence of vision impairment and blindness and associated risk factors in adults aged 40 years and older with known or undiagnosed diabetes: results from the SMART-India cross-sectional study
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Bhende, Pramod, Surya, Janani, Gopal, Lingam, Ramakrishnan, Radha, Roy, Rupak, Das, Supita, Manayath, George, Prabhakaran, Vignesh T, Anantharaman, Giridhar, Gopalakrishnan, Mahesh, Natarajan, Sundaram, Krishnan, Radhika, Mani, Sheena Liz, Agarwal, Manisha, Behera, Umesh, Bhattacharjee, Harsha, Barman, Manabjyoti, Sen, Alok, Saxena, Moneesh, Sil, Asim K, Chakabarty, Subhratanu, Cherian, Thomas, Jitesh, Reesha, Naigaonkar, Rushikesh, Desai, Abishek, Kulkarni, Sucheta, Mohan, Deepa, Chawla, Gajendra, Gurudas, Sarega, Vasconcelos, Joana C, Prevost, A Toby, Raman, Rajiv, Rajalakshmi, Ramachandran, Ramasamy, Kim, Mohan, Viswanathan, Rani, Padmaja K, Das, Taraprasad, Conroy, Dolores, Tapp, Robyn J, and Sivaprasad, Sobha
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- 2024
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3. Correlating the patterns of diabetic macular edema, optical coherence tomography biomarkers and grade of diabetic retinopathy with stage of renal disease
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Agarwal, Manisha, Sachdeva, Mani, Shah, Shalin, Raman, Rajiv, Rani, Padmaja K., Rajalakshmi, Ramachandran, Sivaprasad, Sobha, Vignesh, T. P., Ramasamy, Kim, Madharia, Aishwarya, Sen, Alok, Sugumar, Shalini, Behera, Umesh Chandra, Rodrigues, Ann Maria, Anantharaman, Giridhar, Priya, Swati, and Majumdar, Atanu
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- 2022
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4. Prevalence of diabetic retinopathy in India stratified by known and undiagnosed diabetes, urban–rural locations, and socioeconomic indices: results from the SMART India population-based cross-sectional screening study
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Bhende, Pramod, Surya, Janani, Gopal, Lingam, Ramakrishnan, Radha, Roy, Rupak, Das, Supita, Manayath, George, Pooleeswaran, Vignesh T, Anantharaman, Giridhar, Gopalakrishnan, Mahesh, Natarajan, Sundaram, Krishnan, Radhika, Mani, Sheena Liz, Agarwal, Manisha, Behera, Umesh, Bhattacharjee, Harsha, Barman, Manabjyoti, Sen, Alok, Saxena, Moneesh, Sil, Asim K, Chakrabarty, Subhratanu, Cherian, Thomas, Jitesh, Reesha, Naigaonkar, Rushikesh, Desai, Abishek, Kulkarni, Sucheta, Raman, Rajiv, Vasconcelos, Joana C, Rajalakshmi, Ramachandran, Prevost, A Toby, Ramasamy, Kim, Mohan, Viswanathan, Mohan, Deepa, Rani, Padmaja K, Conroy, Dolores, Das, Taraprasad, and Sivaprasad, Sobha
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- 2022
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5. Chatbots Vs. Human Experts: Evaluating Diagnostic Performance of Chatbots in Uveitis and the Perspectives on AI Adoption in Ophthalmology.
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Rojas-Carabali, William, Sen, Alok, Agarwal, Aniruddha, Tan, Gavin, Cheung, Carol Y., Rousselot, Andres, Agrawal, Rajdeep, Liu, Renee, Cifuentes-González, Carlos, Elze, Tobias, Kempen, John H., Sobrin, Lucia, Nguyen, Quan Dong, de-la-Torre, Alejandra, Lee, Bernett, Gupta, Vishali, and Agrawal, Rupesh
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LANGUAGE models , *CHATGPT , *ARTIFICIAL intelligence , *CHATBOTS , *OPHTHALMOLOGY practice - Abstract
Purpose: To assess the diagnostic performance of two chatbots, ChatGPT and Glass, in uveitis diagnosis compared to renowned uveitis specialists, and evaluate clinicians' perception about utilizing artificial intelligence (AI) in ophthalmology practice. Methods: Six cases were presented to uveitis experts, ChatGPT (version 3.5 and 4.0) and Glass 1.0, and diagnostic accuracy was analyzed. Additionally, a survey about the emotions, confidence in utilizing AI-based tools, and the likelihood of incorporating such tools in clinical practice was done. Results: Uveitis experts accurately diagnosed all cases (100%), while ChatGPT achieved a diagnostic success rate of 66% and Glass 1.0 achieved 33%. Most attendees felt excited or optimistic about utilizing AI in ophthalmology practice. Older age and high level of education were positively correlated with increased inclination to adopt AI-based tools. Conclusions: ChatGPT demonstrated promising diagnostic capabilities in uveitis cases and ophthalmologist showed enthusiasm for the integration of AI into clinical practice. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Evaluating the Diagnostic Accuracy and Management Recommendations of ChatGPT in Uveitis.
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Rojas-Carabali, William, Cifuentes-González, Carlos, Wei, Xin, Putera, Ikhwanuliman, Sen, Alok, Thng, Zheng Xian, Agrawal, Rajdeep, Elze, Tobias, Sobrin, Lucia, Kempen, John H., Lee, Bernett, Biswas, Jyotirmay, Nguyen, Quan Dong, Gupta, Vishali, de-la-Torre, Alejandra, and Agrawal, Rupesh
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NATURAL language processing ,CHATBOTS ,ARTIFICIAL intelligence ,CHATGPT ,DIAGNOSTIC errors - Abstract
Introduction: Accurate diagnosis and timely management are vital for favorable uveitis outcomes. Artificial Intelligence (AI) holds promise in medical decision-making, particularly in ophthalmology. Yet, the diagnostic precision and management advice from AI-based uveitis chatbots lack assessment. Methods: We appraised diagnostic accuracy and management suggestions of an AI-based chatbot, ChatGPT, versus five uveitis-trained ophthalmologists, using 25 standard cases aligned with new Uveitis Nomenclature guidelines. Participants predicted likely diagnoses, two differentials, and next management steps. Comparative success rates were computed. Results: Ophthalmologists excelled (60–92%) in likely diagnosis, exceeding AI (60%). Considering fully and partially accurate diagnoses, ophthalmologists achieved 76–100% success; AI attained 72%. Despite an 8% AI improvement, its overall performance lagged. Ophthalmologists and AI agreed on diagnosis in 48% cases, with 91.6% exhibiting concurrence in management plans. Conclusions: The study underscores AI chatbots' potential in uveitis diagnosis and management, indicating their value in reducing diagnostic errors. Further research is essential to enhance AI chatbot precision in diagnosis and recommendations. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Clinical profile and response to steroids in post-fever retinitis: a nine-year experience from a referral institute in the rural hinterland of Central India
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Shenoy, Pratik, Kohli, Gaurav Mohan, Kerketta, Aarti, Pathak, Parul, Shetty, Sachin, Barde, Pradip, Chakma, Tapas, and Sen, Alok
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- 2021
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8. Impact of prophylactic intracameral moxifloxacin on post-cataract surgery endophthalmitis: data from a tertiary eye care facility in rural India
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Shenoy, Pratik, Goh, Eunice Jin Hui, Kashikar, Rashmi, Kohli, Gaurav Mohan, Sachdeva, Mani, Naman, Vipul, Sood, Devindra, Bhatia, Priyavrat, Sen, Pradhnya, Agrawal, Rupesh, and Sen, Alok
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- 2021
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9. Disseminated Tuberculosis Presenting as Ciliary Body and Thyroid Mass Lesions: A Case Report.
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Singh, Jayanti, Saluja, Pranav, Thacker, Abhiram, More, Amruta, Tripathi, Shubhi, and Sen, Alok
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EXTRAPULMONARY tuberculosis ,CILIARY body ,NEEDLE biopsy ,ANTITUBERCULAR agents ,THYROID gland - Abstract
To report a case of disseminated TB presenting as ciliary body and thyroid mass lesions. A 17-year-old male patient presented with a thyroid mass and blurring of vision in the left eye. A diagnosis of ciliary body granuloma was made. Although the Mantoux was negative, the HRCT chest showed evidence of miliary TB, and the fine needle aspiration cytology from the thyroid mass revealed AFB. On initiation of Antitubercular therapy(ATT), a paradoxical worsening of ciliary body granuloma was noted which resolved on starting steroids. Involvement of thyroid gland and ciliary body although rare in tuberculosis, may be the presenting feature of disseminated TB. Paradoxical reactions seen after initiation of ATT in these cases may respond well to oral steroids. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Posterior capsule opacification rate after phacoemulsification in pediatric cataract: Hydrophilic versus hydrophobic intraocular lenses
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Sen, Pradhnya, Kshetrapal, Mansi, Shah, Chintan, Mohan, Amit, Jain, Elesh, and Sen, Alok
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- 2019
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11. Primary versus secondary intraocular lens implantation in traumatic cataract after open-globe injury in pediatric patients
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Sen, Pradhnya, Shah, Chintan, Sen, Alok, Jain, Elesh, and Mohan, Amit
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- 2018
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12. A practical model for effective eye care delivery in Southeast Asian rural communities: A proposal built based on experts' recommendations.
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Liu, Renee, Sule, Ashita A., Shannon, Choo Sheriel, Ravilla, Thulasiraj, Taylor, Hugh, Rojas-Carabali, William, Khanna, Rohit C., Mishra, Chitaranjan, Sen, Alok, Khatri, Anadi, Tan, Anna C. S., Sobrin, Lucia, and Agrawal, Rupesh
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EYE care ,RURAL health services ,SURGICAL complications ,JUDGMENT sampling ,RESPITE care ,SATISFACTION ,HUMAN resources departments - Abstract
Purpose: To evaluate rural community-based eye care models from the perspective of community ophthalmology experts and suggest sustainable technological solutions for enhancing rural eye care delivery. Methods: A semi-structured descriptive survey, using close-ended and open-ended questions, was administered to the experts in community ophthalmology sourced through purposive sampling. The survey was self-administered and was facilitated through online platforms or in-person meetings. Uniform questions were presented to all participants, irrespective of their roles. Results: Surveyed participants (n = 22 with 15 from India and 7 from Nepal) in high-volume tertiary eye hospitals faced challenges with resources and rural outreach. Participants had mixed satisfaction with pre-operative screening and theatre resources. Delayed presentations and inexperienced surgeons contributed to the surgery complications. Barriers to rural eye care included resource scarcity, funding disparities, and limited infrastructure. In rural/peri-urban areas 87% of participants agreed with providing primary eye care services, with more than 60% of the experts not in agreement with the makeshift center model of eye care delivery. Key components for an effective eye care model are sustainability, accessibility, affordability, and quality. These can be bolstered through a healthcare management platform and a human-chain supply distribution system. Conclusion: Tailored interventions are crucial for rural eye care, emphasizing the need for stronger human resources, optimized funding, and community awareness. Addressing challenges pertinent to delayed presentation and surgical training is vital to minimizing complications, especially with advanced cataracts. Enhancements in rural eye care demand a comprehensive approach prioritizing accessibility, affordability, and consistent quality. [ABSTRACT FROM AUTHOR]
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- 2024
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13. Prevalence and incidence of visual impairment in patients with proliferative diabetic retinopathy in India
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Khan, Rehana, Chandra, Shruti, Rajalakshmi, Ramachandran, Rani, Padmaja Kumari, Anantharaman, Giridhar, Sen, Alok, Desai, Abhishek, Roy, Rupak, Natarajan, Sundaram, Chen, Lanin, Chawla, Gajendra, Behera, Umesh Chandra, Gopal, Lingam, Gurudas, Sarega, Sivaprasad, Sobha, and Raman, Rajiv
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- 2020
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14. Knowledge and awareness of clinical trials among trial participants in India: A multicentric questionnaire-based cross-sectional study.
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Pillai, Gopal, Sheeba, C, Barman, Manabjyoti, Sen, Alok, Sundaram, Natarajan, Dickson, Merin, Joyal, Shamilin, Choudhury, Manjisa, Joy, Merlin, Deepthi, K, Jangid, Poonam, and Dani, Samrudhi
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CLINICAL trials ,CROSS-sectional method ,AWARENESS ,FINANCIAL security ,FAMILIES - Abstract
Purpose: The knowledge and attitude of participants toward clinical trials (CTs) are a key determinant in successful recruitment and retention. This study aimed to evaluate knowledge and awareness-attitude among the recruited CT participants about CTs. Methods: This was a cross-sectional face-to-face survey comprising CT participants involved in the past or currently a part of a CT during this study within the Indian Ophthalmology Clinical Trial Network (IOCTN). A previously validated questionnaire was used, and data regarding demographics, knowledge, and awareness-attitude about CTs were collected. The total awareness-attitude score was used to determine the knowledge and awareness of the participants. Results: A total of 121 subjects had participated in the study who were part of ongoing trials, of which only five participants had prior experience of CTs. The majority (90%) had knowledge about CTs, whereas only 7% had confirmed signing consent forms. The total awareness-attitude score significantly varied across locations (27% for the southern zone, 53% for the central zone, and 52% for the western zone), and this was negatively associated with education. The most negative attitude (38.6%) was observed regarding adequate information sharing among participants, whereas non-disruption of their routine family life (60.7%) and financial stability (67.6%) were the top most positive attitudes revealed during their participation. The participants' pre- and post-participation attitude toward CTs revealed a positive attitude. Conclusion: The factors influencing a participant's knowledge and attitudes toward CTs were revealed in the study. Furthermore, the need for awareness regarding benefits of CTs to the public, participant's rights, and their voluntary power were the major highlights. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Mobile battery blast injuries: An emerging ocular health hazard in children.
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Shah, Chintan, Goyal, Anand, Sen, Pradhnya, Peeush, Parimal, Sen, Alok, More, Amruta, and Jain, Elesh
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BLAST injuries ,OCULAR injuries ,CHILDREN'S health ,EYE care ,VISUAL acuity ,FOREIGN bodies - Abstract
Purpose: To assess clinical features, visual outcomes, and setting of mobile battery blast-induced eye injuries in children. Methods: Retrospective case sheets of children with mobile battery blast injuries were reviewed at a tertiary eye care center from January 2015 to March 2022. We noted the mode of injury, battery status, and clinical presentation and analyzed the treatment outcomes. Results: The study included 14 eyes of 11 patients. Three patients (27%) had bilateral ocular injuries. The most common reasons for the blast were wiring a bulb to the battery or charging the battery with a universal mobile charger, seen in four cases each. Three eyes had closed-globe injuries (CGIs), whereas 11 had open-globe injuries (OGIs). Of the 11 eyes with OGI, four also had a retained intraocular foreign body (IOFB). Only four (36%) eyes having OGI could achieve vision better than 6/60. All three eyes with CGIs developed secondary glaucoma, and two underwent trabeculectomy. However, the visual prognosis was better (>6/36) in eyes with CGI. Overall, mean visual acuity at the final follow-up was improved to 1.41 ± 1.14 logMAR from 2.32 ± 0.76 logMAR at presentation. This was also found to be statistically significant with a P value of 0.02. Conclusion: Battery blast-induced ocular injuries, although rare, often lead to poor outcomes. Apart from charging, playing with discarded or damaged batteries was a common reason for battery blasts in our series. [ABSTRACT FROM AUTHOR]
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- 2023
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16. Attitude and perception toward clinical trials in India among patients and patient bystanders visiting the Indian Ophthalmology Clinical Trial Network: A multi-centric, cross-sectional survey.
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Pillai, Gopal S., C. S., Sheeba, Barman, Manabjyoti, Sen, Alok, Sundaram, Natarajan, Dickson, Merin, Joyal, Shamilin, Choudhury, Manjisa, Joy, Merlin M., K. G., Deepthi, Jangid, Poonam, and Abhilash, Anjana
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CLINICAL trials ,ATTITUDE (Psychology) ,HEALTH insurance ,OPHTHALMOLOGY ,PATIENTS' attitudes - Abstract
Purpose: Advances in patient treatment depend heavily on clinical trials (CTs). Patient volunteers for CT are tougher to recruit and retain. In order to administer CTs effectively, it is necessary to comprehend how the public views and perceives participating in them. The study assessed the perception and attitudes of patients and bystanders toward CTs in India. Methods: This was a multi-centric, cross-sectional study among patients and bystanders using a questionnaire that consisted of socio-demographic characteristics and questions on knowledge and attitude toward participation in CTs. The minimum sample size estimated for the survey was 750. Results: A total of 1260 respondents (patients and bystanders) had participated in the survey. 42% of total respondents were aware about CTs. Unawareness regarding (i) voluntary power of an individual to participate in a CT (only 47%), (ii) entitled benefits of free treatment and medical insurance during enrolment in a CT (only 47%), and (iii) only 16% of the respondents knew involvement of human subjects in CT were the major highlights among those who had prior knowledge about CTs. Education was the most pervasive factor in shaping positive perception among the respondents. Occupation was another ubiquitous factor in shaping their perception regarding CTs. Conclusion: The majority of respondents were not aware of CTs. The major concerns observed were time consumption and harmful nature of CTs that influenced their unwillingness to participate in CTs. Initiatives such as awareness campaigns and survey assessments that would result in scientifically effective health service policies would be strategic methods to enhance CT participation. [ABSTRACT FROM AUTHOR]
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- 2023
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17. Endogenous Endophthalmitis - A Major Review.
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Xie, Cen Amy, Singh, Jayanti, Tyagi, Mudit, Androudi, Sofia, Dave, Vivek Pravin, Arora, Atul, Gupta, Vishali, Agrawal, Rupesh, Mi, Helen, and Sen, Alok
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ENDOPHTHALMITIS ,PARS plana ,SYMPTOMS ,EYE pain ,VISUAL acuity - Abstract
Endogenous endophthalmitis (EE) is an uncommon but potentially devastating ocular infection involving the inner layers of the eye. The global incidence of EE is on the rise. Common ocular signs and symptoms associated with EE include conjunctival injection, ocular pain, and reduced visual acuity. On clinical examination, a history of prior or coexisting systemic infections, symptoms (e.g., fever, malaise), and localizing features may be noted. Clinical diagnosis is often challenging, resulting in critical delays that contribute to a poor prognosis. Blood cultures and ocular fluid samples can aid in conforming causative pathogen(s), after which empirical antibiotic therapy, both systemic and intravitreal, should be instated. The use of steroids to suppress inflammation remains controversial. Surgical options include pars plana vitrectomy. Overall prognosis varies depending on host and pathogen factors, and early diagnosis and initiation of appropriate treatment are crucial. [ABSTRACT FROM AUTHOR]
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- 2023
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18. Response to the Comment on "Evaluating the Diagnostic Accuracy and Management Recommendations of ChatGpt in Uveitis".
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Rojas-Carabali, William, Cifuentes-González, Carlos, Wei, Xin, Putera, Ikhwanuliman, Sen, Alok, Thng, Zheng Xian, Agrawal, Rajdeep, Elze, Tobias, Sobrin, Lucia, Kempen, John H., Lee, Bernett, Biswas, Jyotirmay, Nguyen, Quan Dong, Gupta, Vishali, de-la-Torre, Alejandra, and Agrawal, Rupesh
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CHATBOTS ,CHATGPT ,ARTIFICIAL intelligence ,UVEITIS ,OPHTHALMOLOGISTS - Abstract
This document is a response to a comment on a study titled "Evaluating the Diagnostic Accuracy and Management Recommendations of ChatGPT in Uveitis." The authors appreciate the comments and acknowledge the importance of continuous evaluation in the field of artificial intelligence (AI) applications in healthcare. They explain that their study aimed to compare the diagnostic accuracy of ChatGPT with that of uveitis specialists, as they wanted to evaluate its effectiveness against the highest standard of diagnosis and treatment. The authors also address the limitation of their study focusing on standard uveitis cases and express the need for future research to encompass a wider range of cases. They emphasize the importance of considering the individual contexts and specifications of AI systems when generalizing the results. The authors agree with the ethical considerations and potential limitations of AI in healthcare and highlight the need for sophisticated algorithms and diverse training data to minimize errors and biases. They appreciate the constructive critique and express their commitment to further research in the field of AI in medical diagnostics. [Extracted from the article]
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- 2024
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19. Bilateral Atypical Optic Neuritis following ChAdOx1_nCoV-19 Vaccination: A Putative Plausibility.
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Saluja, Pranav, Kohli, Gaurav Mohan, More, Amruta, Shetty, Sachin B, and Sen, Alok
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OPTIC neuritis ,COVID-19 vaccines ,VACCINATION ,OPTIC nerve ,SARS-CoV-2 ,VACCINE development - Abstract
In this case report, we describe the clinical features and treatment outcomes of bilateral optic neuritis developing after the administration of the first dose ChAdOx1_nCoV-19 (Covishield) vaccine in a previously healthy young immunocompetent male. Case report A 35-year-old healthy male, presented with sudden decrease in vision which was progressive in nature. The symptoms developed two days following the first dose of the Covid ChAdOx1_nCoV-19 vaccine. A possible diagnosis of vaccine associated optic neuritis was based on the temporal association between the administration of vaccine and the development of ocular symptoms and ruling out other immune or infectious etiologies. The patient showed good response to pulse systemic steroids followed by a short course of oral steroids. Bilateral optic nerve involvement with disc edema may represent a rare adverse event of covid 19 vaccine which responds well to a short course of steroids. [ABSTRACT FROM AUTHOR]
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- 2023
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20. An ophthalmology professionalism survey tool: Outcomes from a multi-center study in Central India.
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Joltikov, Katherine A., Khandekar, Rajiv, Shenoy, Pratik, Jain, Sashi, Kumar, Kavita, Tiwari, Uma Sharan, Kochar, Shipli, Sood, Devendra, Edward, Deepak P., and Sen, Alok
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PROFESSIONALISM ,PHYSICIAN-patient relations ,OPHTHALMOLOGY ,OPHTHALMOLOGISTS - Abstract
Purpose: To describe a professionalism survey tool and its use to assess knowledge of medical professionalism in ophthalmology training programs in Central India. Settings and Design: Multi-center survey study. Methods: A validated 33-question, scenario-based survey addressing professionalism attributes was administered at five centers in central India. The attributes tested included "personal characteristics," "physician-patient relationships," "workplace practice and relationships," and "socially responsible behaviors." A mean attribute score (%) was calculated and compared to "gold standard" responses by a group of expert senior ophthalmologists (100% agreement for responses). Results: A total of 225 participants completed the survey; 124 residents, 47 fellows, and 54 consultants (98.4% response rate). The total mean attribute score was 80.7 ± 9.1 (min 16.67, max 100). There was variation in the mean attribute score by professionalism attribute (P < 0.001), and a trend toward higher mean attribute scores for consultants compared to trainees across all attribute groups. The scores for "personal characteristics" (93 ± 9.7) and "physician-patient relationship" (82 ± 15.8) were the highest, whereas scores for "socially responsible behaviors" (73.9 ± 18.6) and "workplace practices" were low (72 ± 13). Conclusions: There is a generally high level of professionalism knowledge among ophthalmologists in central India. The results suggest that experience does impact knowledge of professionalism. Potential for improvement in professionalism exists in around "workplace practices", and around "socially responsible behaviors". These findings may serve as a valuable discussion starter and teaching tool to enhance professionalism in ophthalmology training programs. [ABSTRACT FROM AUTHOR]
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- 2023
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21. Knowledge and perception of health-care professionals on clinical trials in India: A pan-Indian cross-sectional survey.
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Pillai, Gopal S., Sheeba, C. S., Barman, Manabjyoti, Sen, Alok, Sundaram, Natarajan, Dickson, Merin, Joyal, Shamilin, Choudhury, Manjisa, Joy, Merlin Mery, Deepthi, K. G., Jangid, Poonam, and Dudwadkar, Shruti
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CLINICAL trials ,MONETARY incentives ,PROFESSIONAL employees ,DRUG approval ,PHARMACISTS ,OPTICIANS ,PHARMACIST-patient relationships - Abstract
Purpose: The purpose of the study was to evaluate the knowledge and perception of health-care professionals (HCPs), such as doctors/surgeons, pharmacists, nurses, optometrists, and lab technicians, on clinical trials (CTs) in India. Methods: The study was a pan-Indian cross-sectional survey initiated by the Indian Ophthalmology Clinical Trial Network (IOCTN) by using a previously validated questionnaire for three months of data collection. An online survey was used to record information regarding demographics, CT knowledge, and CT perception among HCPs. Results: A total of 630 responses were recorded from HCPs: 207 doctors and surgeons, 159 pharmacists, and 264 laboratory technicians, nurses, and optometrists across India. Over 90% of HCPs had a clear knowledge on the purpose of CTs, the informed consent (IC) process, ethical approval by the Drugs Controller General of India (DCGI). About 80% and 90% were aware of confidentiality of patients, voluntariness of participation, and good clinical practice. Surprisingly, less than 50% had lesser knowledge regarding monetary incentives of CT participants (CTPs). A slightly positive perception was observed regarding the potential benefits of CTPs, compensation related to injury, and importance of obtaining IC. Less than 50% had a negative perception that monetary compensation to CTPs led to bias and deprivation of standard treatments. However, no significant difference was observed between other aspects of demographics and perception regarding CTs. Conclusion: We observed doctors and surgeons to be having the highest regarding CTs, followed by pharmacists. The survey highlighted the necessity of scheduling awareness programs among the HCPs, which would improve their misconceptions and perception of CTs while interacting with patients for CT enrollment. [ABSTRACT FROM AUTHOR]
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- 2023
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22. Comparative study of automated cryopreservation of red blood cells
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Sen, Alok and Khetarpal, A.
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- 2013
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23. Prof. Amod Gupta - The leader and the legacy.
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Bansal, Reema and Sen, Alok
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- 2023
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24. Macular Necrotizing Retinitis as a Presenting Feature of Atypical Fulminant SSPE: A Case Report.
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More, Amruta, Singh, Jayanti, Chandak, Nitin, Shetty, Sachin B., and Sen, Alok
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ANTIBODY titer ,MEASLES ,ELECTROENCEPHALOGRAPHY - Abstract
Purpose: To report ocular findings in a case of atypical fulminant SSPE Case report: A 20-year-old male who came with macular necrotising retinitis in both his eyes in absence of any neurological feature. Within a week the patient developed dystonic posturing and seizures. CSF examination revealed raised measles antibody titres and EEG was suggestive of SSPE. The patient succumbed to the disease within 35 days of presentation. Conclusion: SSPE can rarely have a rapidly progressive downhill course without typical neurological features and ophthalmic features which appear to be more consistent may help in clinching the diagnosis in these cases. [ABSTRACT FROM AUTHOR]
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- 2023
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25. Choroidal Involvement in a Case of Acute Retinal Necrosis.
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Singh, Jayanti, Bhatia, Priyavrat, Sen, Alok, and More, Amruta
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VISUAL acuity ,NECROSIS ,INTRAVITREAL injections ,VALACYCLOVIR ,ANGIOGRAPHY ,POLYPOIDAL choroidal vasculopathy - Abstract
To report choroidal involvement in a case of ARN. A 26-year-old immunocompetent female presented with a history of decreased vision in the right eye for 4 days. The best corrected visual acuity in the right eye was 3/60. Anterior segment examination showed circumciliary congestion, endothelial pigments, and 1+ cells in the anterior chamber. Fundus examination revealed mild vitritis, disc edema, multifocal patchy retinitis lesions involving the fovea and mid periphery, and arteriolitis. OCT revealed an RPE bump at the macula corroborating with hypocyanacent lesions on indocyanine angiography, which persisted till the late phase, indicating choroidal involvement. The patient was started on oral valacyclovir and oral steroids. Additionally, intravitreal ganciclovir injection was added, leading to a favorable outcome. The final visual acuity post silicone oil removal was 6/60. This is a unique case of ARN having choroidal involvement along with the previously described classical features. [ABSTRACT FROM AUTHOR]
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- 2023
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26. Outcome Measures for Disease Monitoring in Intraocular Inflammatory and Infectious Diseases (OCTOMERIA): Understanding the Choroid in Uveitis with Optical Coherence Tomography (OCT).
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Agrawal, Rupesh, Weng, Rei Chern, Fonollosa, Alex, Giralt, Lena, Artaraz, Joseba, Yang, Peizeng, Huang, Fanfan, Tan, Bingyao, Schmetterer, Leopold, Sen, Alok, Gupta, Vishali, and Xin, Wei
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OPTICAL coherence tomography ,SARCOIDOSIS ,CHOROID ,BEHCET'S disease ,COMMUNICABLE diseases ,UVEITIS - Abstract
To compare imaging modalities for the choroid of the eye, and evaluate various choroidal changes in uveitides entities. A comprehensive systematic literature review was conducted looking at current imaging modalities available to assess choroid architecture and commonly used parameters available to qualify and quantify choroidal changes, before looking at specific uveitides entities with choroidal involvement which have been broadly separated into non-infectious and infectious in etiology. We describe the various modalities currently available to evaluate the choroid of the eye such as Ultrasound B Scan, ICGA, and OCT. Choroidal changes in various ocular and systemic diseases such as Behcet's Disease, Sarcoidosis, Syphillis, Tuberculosis, and many more have been reported and published. Multiple choroidal tomographic and angiotomographic findings have been demonstrated for evaluation in uveitis. These findings can manifest in multiple ocular and systemic diseases, and can be illustrated using the various imaging modalities at present. Future advancements in choroidal imaging would help to adapt these findings into parameters for clinical practice to properly evaluate these ocular and systemic diseases. [ABSTRACT FROM AUTHOR]
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- 2023
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27. Central macular thickness and subfoveal choroidal thickness changes on spectral domain optical coherence tomography after cataract surgery in pediatric population.
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Sen, Pradhnya, Shah, Chintan, Sachdeva, Mani, Sen, Alok, More, Amruta, and Jain, Elesh
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CHOROID ,OPTICAL coherence tomography ,CHILD patients ,CATARACT surgery ,PEDIATRIC surgery ,PHACOEMULSIFICATION ,CATARACT diagnosis ,UVEA ,CATARACT ,LONGITUDINAL method ,DISEASE complications - Abstract
Purpose: To evaluate the central macular thickness (CMT) and subfoveal choroidal thickness (SFCT) changes on spectral domain optical coherence tomography (SD-OCT) after cataract surgery with intraocular lens (IOL) implantation in a pediatric population.Methods: This was a longitudinal, prospective, interventional study which included 90 pediatric patients who underwent cataract extraction with IOL implantation. Serial SD-OCT scans were done at postoperative day 1, 1-month, and 3-month follow-up. CMT and SFCT were measured at each visit.Results: A statistically significant increase in CMT was noted at 1 month (from 199.3 μm to 210.04 μm) post surgery, which declined over a 3-month period (202.70 μm, P = 0.0001). In case of SFCT, a constant increase was observed for over 3 months of follow-up (baseline: 296.52 μm; 1 month: 309.04 μm; and 3 months: 319.03 μm, P = 0.0001). The traumatic cataract group showed more pronounced changes in CMT and SFCT than the non-traumatic cataract group. No significant difference was observed regarding these parameters between those who underwent primary posterior capsulotomy (PPC) versus those who did not. None of the patients in the study group developed cystoid macular edema. These posterior segment-related anatomical changes did not affect the final visual outcomes.Conclusion: Cataract surgery induces potential inflammatory changes in the macula and choroid in pediatric patients. Such changes are more pronounced in trauma-related cases; however, they are not significant enough to affect the visual outcomes. Similarly, the additional surgical step of PPC does not induce significant anatomical or functional changes. [ABSTRACT FROM AUTHOR]- Published
- 2022
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28. Spectral-domain optical coherence tomography and fundus autofluorescence features in a case of typical retinocytoma
- Author
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Malhotra, Pawan Puneet, Bhushan, Bipul, Mitra, Ashish, and Sen, Alok
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- 2015
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29. Risk Factors for Development of Endophthalmitis after Open Globe Injury in Children: A Case-Control Study.
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Sen, Pradhnya, Kohli, Gaurav Mohan, Shah, Chintan, Mohan, Amit, Tiwari, Amrita, Ingale, Rashmi, Shenoy, Pratik, and Sen, Alok
- Subjects
ENDOPHTHALMITIS ,CASE-control method ,CORNEA injuries ,OCULAR injuries ,IRIS (Eye) ,WOUNDS & injuries - Abstract
To identify risk-factors for developing endophthalmitis following open globe injury (OGI) in children. Retrospective, single-center, case-control study of children aged <18 years who sustained OGI. Our cohort of 93 eyes consisted of 30 cases (Group A- endophthalmitis) and 63 controls (Group B- no endophthalmitis). Twenty-four eyes (80%) diagnosed with endophthalmitis presented after 24 hours of injury. The presence of central corneal zone-1 injuries (Odd ratio [OR]: 6.64, p= 0.001) and vitreous in wound (OR: 3.53) were associated with the risk of developing endophthalmitis. (p= < 0.05) Additionally the presence of iris prolapse (OR: 4.76) and posterior capsular rupture (PCR) (OR: 5.80) increased the risk of developing endophthalmitis.(p <0.05). Streptococci was isolated in 15 eyes, Pseudomonas in 3 eyes, and Candida in 1 eye. The visual outcomes at three months were significantly worse in Group A (LogMAR 1.77±1.06) compared to Group B (LogMAR 0.65±0.68)(p<0.05). Central corneal involvement, vitreous/ iris incarceration and PCR were important risk factors for development of PTE in children [ABSTRACT FROM AUTHOR]
- Published
- 2022
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30. Herpes simplex virus retinitis following ChAdOx1 nCoV- 19 (Covishield) vaccination for SARS CoV 2: A case report.
- Author
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Singh, Jayanti, More, Amruta, Shetty, Sachin B., Chaskar, Priyanka, and Sen, Alok
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HERPES simplex virus ,COVID-19 vaccines ,VACCINATION ,HERPES simplex ,POLYMERASE chain reaction - Abstract
To report a case of herpes simplex virus retinitis following ChadOx1 nCoV-19 (covishield) vaccination. A 29 year old immunocompetent male presented with unilateral disc edema with adjacent retinitis two days after receiving the first dose of ChAdOx1 nCoV-19 vaccination. Extensive investigations to rule out infective etiology were negative except for polymerase chain reaction (PCR) of the vitreous specimen which was positive for the herpes simplex virus. A diagnosis of herpes simplex (HSV) retinitis post covid vaccination was made. The patient responded well to oral antivirals and steroids. HSV retinitis is a rare complication following the COVID-19 vaccination. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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31. Bilateral Ocular Tuberculosis in a Child with Negative Tuberculin Skin Test (TST): A Diagnostic Dilemma.
- Author
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Agrawal, Tina, Multani, Priyansha, Shetty, Sachin B., and Sen, Alok
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TUBERCULIN test ,SKIN tests ,TUBERCULOSIS ,GRAM-negative bacteria ,ASYMPTOMATIC patients - Abstract
To report a case of bilateral ocular tuberculosis (OTB) in a child with negative Tuberculin skin test (TST). Case report. A 12-year-old malnourished systemically asymptomatic boy presented with sudden profound loss of vision in both eyes. Dense vitritis precluded fundus visualization in right eye (RE). In left eye, fundus findings of extensive vasculitis associated with multifocal retinochoroiditis were suggestive of OTB. However, negative TST, normal chest X-ray, and gram negative bacteriuria led to confusion between endogenous endophthalmitis and OTB. Based on strong clinical suspicion and high-resolution chest tomography (HRCT) of thorax which was suggestive of TB-pneumonitis, a diagnosis of presumed OTB was made. A good response to anti-tubercular-treatment and corticosteroids, with resolution of retinochoroiditis lesions, vasculitis, and vitritis, further supported our diagnosis. This case highlights the importance of keeping a high index of suspicion for TB-associated uveitis in children, based on clinical findings. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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32. Hemolysis and COVID-19 infection: A fatal combination – An interesting series of three cases.
- Author
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Balraam, K., Raj, Vikas, Sagoo, Gurpreet, Garg, Nidhi, Taneja, Nitin, and Sen, Alok
- Published
- 2022
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33. Coloboma associated retinal detachment: Anatomical and functional results in the era of microincision vitrectomy surgery with an evaluation of risk factors for a recurrence.
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Shenoy, Pratik, Katre, Prashant, Kohli, Gaurav, Sen, Alok, Agarwal, Manisha, Katre, Prashant S, and Kohli, Gaurav M
- Abstract
Purpose: : To analyze the anatomical and visual outcomes of microincision vitrectomy surgery (MIVS) with silicone oil tamponade in eyes having coloboma-related retinal detachment (RD) and evaluate the risk factors for recurrence of RD.Methods: : This was a retrospective, multicentric analysis of eyes having coloboma RD undergoing MIVS with silicone oil tamponade between March 2010 and July 2018.Results: : We evaluated 148 eyes of 144 patients. The mean age of presentation was 17.4 ± 9.8 years (range: 2-65 years) and the mean follow-up duration was 13.1 ± 13.8 months (range: 3-84 months). The single operation success rate was 88.5% (131 eyes), with an overall successful outcome achieved in 90.5% (134 eyes). Recurrence of RD occurred in 17 eyes (11.5%) over a mean duration of 2.59 ± 3 months. The risk of recurrence was found to be higher in eyes where relaxing retinectomy (RR) was performed (odds ratio [OR]: 3.22; P = 0.05). A statistically significant improvement in vision was noted in the majority of cases from logMAR 1.85 ± 0.34 preoperatively to logMAR 1.33 ± 0.6 post-surgery (P = 0.002).Conclusion: : MIVS with silicone oil tamponade provided an anatomical success rate of 90.5% in eyes with coloboma RD with a significant improvement in visual acuity. Eyes in which RR was performed were susceptible to higher rates of re-detachment. [ABSTRACT FROM AUTHOR]- Published
- 2022
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34. Sympathetic ophthalmia: A comprehensive update.
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Parchand, Swapnil, Agrawal, Deepshikha, Ayyadurai, Nikitha, Agarwal, Aniruddha, Gangwe, Anil, Behera, Shashwat, Bhatia, Priyavat, Mulkutkar, Samyak, Barwar, Gulshan, Singh, Ramandeep, Sen, Alok, and Agarwal, Manisha
- Abstract
Sympathetic ophthalmia is a rare, bilateral, granulomatous, panuveitis following penetrating trauma or surgery to one eye. Clinical presentation commonly occurs within the first year of trauma occurrence but can be delayed by several years. It manifests as acute/chronic granulomatous uveitis with yellowish-white choroidal lesions or Dalen-Fuchs nodules. Initially, patients respond rapidly to corticosteroid therapy, but a majority require long-term use of corticosteroid-sparing agents to prevent recurrences. The purpose of this review is to elaborate on the current understanding of the pathophysiology, the importance of multimodal imaging in early diagnosis, and the role of newer immunomodulatory and biological agents in recalcitrant cases. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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35. Bacillary Layer Detachment in Hyper-acute Stage of Acute Posterior Multifocal Placoid Pigment Epitheliopathy: A Case Series.
- Author
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Kohli, Gaurav Mohan, Bhatia, Priyavrat, Shenoy, Pratik, Sen, Alok, and Gupta, Amod
- Abstract
The term bacillary layer detachment (BLD) represents a possible separation between the myoid and ellipsoid component of the inner segment, following insult or injury to the outer retina. It has been described previously in cases of toxoplasma retinochoroiditis, central serous chorioretinopathy, Vogt Koyanagi Harada disease and trauma. To describe the presence of BLD in Acute Posterior Multifocal Placoid Pigment Epitheliopathy (APMPPE). Clinical and OCT-based description of three consecutive cases of APMPPE with BLD. All the three cases (a 25-year-old female, a 36-year-old male, and a 32-year-old male) presented with unilateral, diminution of vision of acute onset. They were diagnosed as APMPPE and OCT revealed a splitting of the ellipsoid zone, resembling a BLD. All the three cases showed complete resolution by 1 week. BLD appears in the acute stage of APMPPE and resolves rapidly within a week. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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- View/download PDF
36. Safety and efficacy of suprachoroidal triamcinolone acetonide for the management of serous choroidal detachment prior to rhegmatogenous retinal detachment surgery: A Pilot study.
- Author
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Kohli, Gaurav, Shenoy, Pratik, Halim, Danish, Nigam, Saurabh, Shetty, Sachin, Talwar, Dinesh, Sen, Alok, and Kohli, Gaurav Mohan
- Subjects
TRIAMCINOLONE acetonide ,RETINAL detachment ,RETINAL surgery ,SURGICAL drainage ,PILOT projects ,CLINICAL trials ,TRIAMCINOLONE ,RETROSPECTIVE studies ,LONGITUDINAL method ,DISEASE complications - Abstract
Purpose: To study the safety and efficacy of pre-operative suprachoroidal triamcinolone acetonide (SCTA) for achieving reduction/resolution of serous choroidal detachment (CD) associated with rhegmatogenous retinal detachment (RRD).Methods: This was a prospective, noncomparative, interventional pilot study. All consecutive patients presenting with RD and coexisting CD underwent transconjunctival injection of SCTA before proceeding with vitrectomy/scleral buckle surgery. Sequential ultrasound B scans were performed for assessing the change in height of the CD.Results: The mean age of the cohort was 53.8 ± 10.8 years (range: 39-72 years). The CD was present in a median of 3 quadrants; the cumulative mean CD height was 5.59 mm (range: 2.02-9.42 mm). Following SCTA, a successful response (>50% reduction) was seen in five eyes by day 3 and in two eyes by day 5. Three eyes failed to respond to SCTA and required surgical drainage before proceeding with vitrectomy. No intraprocedural injection-related complications were noted. A transient rise in the intraocular pressure (30 mmHg) was seen in one eye following vitrectomy and was managed successfully with topical antiglaucoma medications.Conclusion: Suprachoroidal administration of triamcinolone appears to be a safe and effective technique to achieve CD resolution in eyes with RRD. [ABSTRACT FROM AUTHOR]- Published
- 2022
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37. Dr. Budhendra Kumar Jain - Giving sight to changing lives: The journey of a pure soul.
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Sen, Alok, Jain, Elesh, Maniar, Ranjith, and Kuyyadiyil, Subeesh
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- *
MEDICAL personnel , *RURAL-urban migration , *EYE care - Abstract
This is the result of an ophthalmologist-friendly environment created by Dr. B. K. Jain that ensures world-class comprehensive eye care to the rural and needy population at their doorsteps. Dr. Jain knew it would be difficult to convince youths from cities to come and work at Chitrakoot, and so, he decided to create a workforce of locals. - Mahatma Gandhi There can be no better example of this phrase than Dr. Budhendra Kumar Jain. [Extracted from the article]
- Published
- 2023
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38. Successful management of persistent macular hole after macular hole surgery with intravitreal triamcinolone acetonide: A case report.
- Author
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Sen, Alok, Kohli, Gaurav, Mitra, Ashish, Talwar, Dinesh, Sen, Alok C, and Kohli, Gaurav M
- Subjects
- *
TRIAMCINOLONE acetonide , *RETINAL vein occlusion , *PHACOEMULSIFICATION , *SURGERY , *EDEMA , *RETINAL disease diagnosis , *GLUCOCORTICOIDS , *TRIAMCINOLONE , *TREATMENT effectiveness , *OPTICAL coherence tomography , *VISUAL acuity , *RETINAL diseases - Abstract
We present a case of persistent macular hole (MH) having an apical diameter of 140 microns and a basal diameter of 530 microns following a combined phacoemulsification and MH surgery. Considering post-operative cystoid macular edema (CME) as the possible reason for the failure of the initial surgery, a trial of IVTA was given. The synergistic effect of mechanical plugging of the hole by TA, coupled with resolution of cystoid changes and falling back of the macular hole resulted in the successful closure of the persistent macular hole with improvement in vision from 20/250 to 20/63. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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39. Pars-plana vitrectomy with phacofragmentation for hyperdense cataracts in eyes with severe microcornea and chorio-retinal coloboma: A novel approach.
- Author
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Sen, Alok, Kohli, Gaurav, Mitra, Ashish, Tripathi, Shubhi, Shetty, Sachin, Gupta, Sonal, Sen, Alok C, Kohli, Gaurav M, and Shetty, Sachin B
- Subjects
- *
VITRECTOMY , *CATARACT , *VISUAL acuity , *EYE , *CATARACT surgery , *MEDICAL records , *LOW vision , *PROLIFERATIVE vitreoretinopathy - Abstract
Purpose: To report the outcomes of pars-plana approach for the management of brunescent cataract in eyes with severe microcornea and associated chorio-retinal coloboma.Methods: This was a retrospective, single center, interventional case series performed in a tertiary eyecare center in central Medical records of consecutive cases of microcornea with coloboma who underwent pars-plana vitrectomy with phacofragmentation (PF) between January 2015 and December 2017 were reviewed.Results: The study group comprised of 30 eyes of 30 patients, of which 18 (60%) were males and 12 (40%) were females. The mean age of the patients was 41.9 years (range of 17-70 years). The mean corneal diameter was 6.7 mm with a range of 4-8 mm and all the eyes had dense cataract with nuclear sclerosis of grade 4 or more. The mean preoperative visual acuity was 1.97 (+/-0.067) Log MAR and the mean postoperative vision at 1 month was 1.6 (+/-0.39) Log MAR. Postoperatively, 21 patients (70%) gained ambulatory vision. The visual gain in all the patients was maintained over a mean follow-up period of 15.5 months.Conclusion: Pars-plana vitrectomy with PF can be considered in eyes with severe microcornea and brunescent cataracts, where cataract surgery through the limbal (anterior) approach is not only difficult but at times impossible due to anatomical restraints. [ABSTRACT FROM AUTHOR]- Published
- 2020
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40. Outcomes and risk factors for failure of trabeculectomy with mitomycin C in children with traumatic glaucoma - A retrospective study.
- Author
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Shah, Chintan, Sen, Pradhnya, Mohan, Amit, Peeush, Parimal, Jain, Elesh, Prasad, Kailash, Sen, Alok, and Tripathi, Shubhi
- Subjects
TRABECULECTOMY ,MITOMYCIN C ,CONGENITAL glaucoma ,PREOPERATIVE risk factors ,OCULAR hypotony ,INTRAOCULAR pressure ,VISUAL acuity ,OCULAR injuries ,GLAUCOMA surgery ,GLAUCOMA ,MITOMYCINS ,RETROSPECTIVE studies ,TREATMENT effectiveness ,LONGITUDINAL method - Abstract
Purpose: To determine surgical outcomes and risk factors for failure of trabeculectomy with mitomycin C (TMMC) in pediatric traumatic glaucoma.Methods: Children who underwent TMMC post trauma from January 2014 to December 2019 were reviewed. Demographic features, ocular findings, and surgery details were noted. Surgical success was defined as achieving intraocular pressure (IOP) within 6-21 mm Hg.Results: Seventy-one eyes of seventy patients underwent TMMC. The mean age of the patients was 11.28 ± 3.63 years with a male/female ratio of 13:1. The median time from trauma to IOP rise was 13 days. The majority of the patients (n = 64, 90.1%) had close globe injury. Baseline IOP was 39.3 ± 10.5 mm Hg. Results of the surgery were noted at the last visit. Cumulative success was noted in 51 (71.8%) eyes, while 20 (28.2%) eyes were labeled failures. Mean IOP reduced from 39.3 ± 10.5 to 14.5 ± 8.1 mm Hg. Mean visual acuity improved from 2.3 ± 0.93 to 1.19 ± 1.08 logMAR. Post surgery, the mean follow-up of the patients was 20.3 ± 11.4 months. Age <6 years (RR 3.6), elevated IOP at 1 month after TMMC (RR 2.19), and hypotony within a week of surgery (RR 1.81) were found as independent risk factors of surgical failure.Conclusion: TMMC is effective in reducing IOP in traumatic glaucoma. Young age and inability to control IOP within normal ranges in the immediate period after surgery are important risk factors of failure. [ABSTRACT FROM AUTHOR]- Published
- 2022
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41. Klebsiella Cluster Endophthalmitis following Intravitreal Bevacizumab: Role of Early Detection, Pars Plana Vitrectomy, and Intracameral Moxifloxacin.
- Author
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Kohli, Gaurav Mohan, Shenoy, Pratik, Malhotra, Pawan Puneet, Tripathi, Shubhi, Shetty, Sachin, and Sen, Alok
- Abstract
To report the clinical profile, outcomes of early vitrectomy for cluster endophthalmitis developing after intravitreal Bevacizumab (IVB), and discuss the role of prophylactic intracameral moxifloxacin for eyes undergoing combined cataract surgery with IVB. Single center, retrospective analysis of 35 consecutive eyes developing post-IVB inflammation. Of the 35 eyes that were administered IVB (27 eyes 'IVB alone' and 8 eyes 'IVB with cataract surgery'). Endophthalmitis developed in 28 eyes, 6 eyes were managed with Intravitreal antibiotic (IVAB) alone, while 22 eyes required early vitrectomy. Only one eye undergoing a combined phacoemulsification with IVB developed endophthalmitis. Majority(26/28) of the eyes achieved visual acuity equal to/greater than pre-IVB injection vision over a period of 3.15 ± 3.2 months. Early detection and prompt PPV were effectual for achieving good functional outcomes in our cluster of post-IVB Klebsiella endophthalmitis. Intracameral moxifloxacin was protective in cases undergoing combined cataract surgery with IVB. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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42. Chemical injury with "packet of chunna" (lime) in children: A major ocular health concern in central rural India.
- Author
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Sen, Pradhnya, Tripathi, Prerana, Mohan, Amit, Agarwal, Khushboo, Shah, Chintan, Parmar, Gautam, and Sen, Alok
- Published
- 2022
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43. Role of Scheimpflug imaging for assessment of posterior lens capsule in pediatric traumatic cataract.
- Author
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Sen, Pradhnya, Kumar, Naveen, Mohan, Amit, Shah, Chintan, Jain, Elesh, and Sen, Alok
- Subjects
CRYSTALLINE lens ,OCULAR injuries ,CATARACT surgery ,INTRAOCULAR lenses ,SENSITIVITY & specificity (Statistics) ,CATARACT ,EYE - Abstract
Purpose: To find the accuracy of Scheimpflug imaging for the evaluation of posterior lens capsule and to assess the incidence of pre-existing posterior capsular tear (PCT) in pediatric traumatic cataracts.Methods: It was a prospective, non-randomized, and interventional study. Scheimpflug imaging was done preoperatively to detect pre-existing PCT in pediatric traumatic cataracts after blunt trauma. All patients underwent cataract extraction with intraocular lens implantation. Intraoperatively, the posterior capsule status was noted and compared with the preoperative Scheimpflug images.Results: Forty-seven eyes of 47 children having traumatic cataracts following closed-globe injury were included. There were 32 males and 15 females with a mean age of 10.91 ± 2.75 years. The mean duration of performing the Scheimpflug imaging from injury was 41.7 ± 7.78 days. Preoperative Scheimpflug imaging showed intact posterior lens capsule in 36 eyes and PCT in 11 eyes. Intraoperative, 37 eyes had an intact posterior lens capsule and 10 eyes had PCT. The Scheimpflug imaging did not detect the PCT in three eyes (false-negative), and in four eyes, PCT was detected falsely on Scheimpflug imaging (false-positive). The sensitivity and specificity of the Scheimpflug imaging were 70 and 89.18%, respectively. The accuracy of the technique was 85.11%.Conclusion: Scheimpflug imaging is a useful modality for the detection of PCT preoperatively in cases with doubtful posterior lens capsule integrity. [ABSTRACT FROM AUTHOR]- Published
- 2021
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44. Knowledge, attitude, and practice patterns and the purported reasons for delayed presentation of patients with sight-threatening diabetic retinopathy at a tertiary eye-care facility in Central India: A questionnaire-based study.
- Author
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Sen, Alok, Pathak, Parul, Shenoy, Pratik, Kohli, Gaurav Mohan, Bhatia, Priyavrat, and Shetty, Sachin
- Subjects
- *
DIABETIC retinopathy , *PEOPLE with diabetes , *PATIENT education , *EYE care , *DISEASE risk factors , *DIABETES - Abstract
Purpose: To identify the reasons for delayed presentation among patients with sight-threatening diabetic retinopathy (STDR) and to assess their knowledge, attitude, and practice (KAP) patterns in context to diabetes mellitus (DM) and diabetic retinopathy (DR). Methods: Single-center, cross-sectional, questionnaire-based KAP survey. All consecutive cases of STDR who presented to our tertiary eye care facility from June 2020 to November 2020 were recruited. The KAP scoring survey tool was incorporated into the questionnaire to help evaluate and represent the patient's disease. Results: 170 patients with STDR were enrolled in the study. The mean age of patients was 54 ± 9.34 years (Range: 21-70 years); 110 patients (64.7%) were between 41 and 60 years; 131 patients (76%) had DM for more than 5 years. The STDR changes were more prevalent in patients with an educational qualification of high school or less (n = 142; 83.5%). Fifty-two patients (30.6%) had been informed regarding the detrimental effect of diabetes on the eyes and were recommended to consult an ophthalmologist by the treating physician. Of these, 24 (46.15%) patients were educated about retinal changes due to diabetes. Eighty-five (50%) patients in our study had good knowledge about DM; 13 (7.6%) patients had good knowledge about DR. For patients not compliant for follow-ups with the treating physician, the use of "home glucometers for self-monitoring (n = 60, 35.3%) was the most prevalent reason. The main reason for poor compliance for undergoing a dilated fundus examination by the ophthalmologist was "Had good vision, so didn't feel the need" in 143 (90.5%) patients. Conclusion: The absence of visual complaints, lack of knowledge, and failure to undergo a dilated fundus examination in the past were the prevalent risk factors in patients presenting with STDR. Knowledge/practice about DR was poor among the patients with STDR. The treating physicians and ophthalmologists were the most common sources for patient education. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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45. Resolution Pattern and Predictors of Outcome for Optic Disc Pit - Maculopathy Following Vitrectomy: An Optical Coherence Tomography Based Morphometric Analysis.
- Author
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Kohli, Gaurav Mohan, Shenoy, Pratik, Khanna, Aman, Bhatia, Priyavrat, Tripathi, Shubhi, Thacker, Abhiram, Sen, Alok, and Shukla, Dhananjay
- Abstract
Background: To characterize the resolution pattern and macular structure recovery of optic disc pit-maculopathy (ODP-M) following vitrectomy using spectral domain-optical coherence tomography (SD-OCT).Methods: This is a single-center, retrospective, observational case series. Serial SD-OCT scans of all consecutive eyes of ODP-M undergoing vitrectomy were evaluated to analyze the sequence of maculopathy resolution.Results: Subretinal fluid (SRF) resolved/reduced in 9 of 12 eyes over a mean of 6 months. For eyes showing resolution, we observed that the closure of the communication tract (CT) [1-3 months] preceded the closure of outer layer defect (OLD) [2-6 months], while SRF[1-12 months] and outer retinal fluid(ORF)[1-12 months] were the last to be resolved. Three eyes with residual SRF/macular fluid had a patent CT.Conclusion: Maculopathy resolved in a staged manner: closure of CT preceded the closure of OLD and absorption of SRF. Non-closure of CT was associated with the persistence of maculopathy.Synopsis: Optic disc pit maculopathy following vitrectomy shows a staged resolution. The persistence of maculopathy is seen in eyes with non-closure of the communication tract.Abbreviation: Key CDVA: Corrected distance visual acuityCMT: Central macular thicknessCR: Complete restorationCT: Communication tractILM: Internal limiting membraneIRF: Inner retinal fluidIR: Incomplete restorationMLF: Multilayered fluidODP-M: Optic disc pit maculopathyOLD: Outer layer defectORF: Outer retinal fluidPPV: Pars plana vitrectomyPVD: Posterior vitreous detachmentSD-OCT: Spectral Domain-Optical Coherence TomographySRF: Subretinal fluid. [ABSTRACT FROM AUTHOR]- Published
- 2021
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46. Severity of diabetic retinopathy and its relationship with age at onset of diabetes mellitus in India: A multicentric study.
- Author
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Parameswarappa, Deepika C., Rajalakshmi, Ramachandran, Mohamed, Ashik, Kavya, Sanagavarapu, Munirathnam, Haripriya, Manayath, George, Kumar, Mathangi Ashok, Raman, Rajiv, Vignesh, T. P., Ramasamy, Kim, Mani, Sheena, Muralidhar, Alankrita, Agarwal, Manisha, Anantharaman, Giridhar, Bijlani, Neha, Chawla, Gajendra, Sen, Alok, Kulkarni, Sucheta, Behera, Umesh C., and Sivaprasad, Sobha
- Subjects
DIABETIC retinopathy ,DIABETES ,AGE of onset ,SYSTOLIC blood pressure ,GLYCEMIC control ,EYE care - Abstract
Purpose: To present clinical profile and risk factors of sight-threatening diabetic retinopathy (STDR) among people with age of onset of diabetes (AOD) <25 versus =25 years. Methods: A retrospective chart analysis of consecutive patients with diabetic retinopathy (DR) n = 654) treated at 14 eye care centers across India between 2018 and 2019 was performed. Patients were divided into two groups, Group 1: AOD <25 years and Group 2: AOD =25 years. DR and diabetic macular edema (DME) were classified using the International Clinical Classification of DR severity scale. STDR included severe nonproliferative DR (NPDR), proliferative DR (PDR), and moderate to severe DME. A multilevel mixed-effects model was used for comparison between two groups: 1) Patients with DR and AOD <25 years and 2) Patients with DR and AOD =25 years. Bivariate and multivariate regression analyses were used to evaluate risk factors between the two groups. Results: A total of 654 patients were included, 161 (307 eyes) in AOD <25 and 493 (927 eyes) in AOD >25 group. There was a higher prevalence of PDR with high-risk characteristics in AOD <25 group (24% vs. 12%) at baseline and 12-month follow-up (25% vs. 6%); P < 0.001. Systolic hypertension and poor glycemic control were risk factors in both groups, with no difference in these modifiable risk factors between groups. Conclusion: People with youth-onset DM are likely to present with severer form of STDR despite similar modifiable risk factors. Therefore, strict control of systolic blood pressure, glycemic status, and regular screening for DR are recommended to reduce the risk of STDR irrespective of the age of onset of diabetes. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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- View/download PDF
47. Comparison of post-cataract surgery endophthalmitis rates using syringing or regurgitation on pressure over the lacrimal sac as a preoperative screening tool for nasolacrimal duct obstruction: An impact assessment of protocol alteration due to the COVID-19 pandemic
- Author
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Shenoy, Pratik, Mehta, Sonali, Shah, Chintan, Joshi, Rajesh, Sen, Pradhnya, Patidar, Narendra, Kohli, Gaurav, and Sen, Alok
- Abstract
Purpose: To compare the post-cataract endophthalmitis (PCE) rates among eyes undergoing syringing or regurgitation on pressure over the lacrimal sac (ROPLAS) test prior to cataract surgery. Methods: We performed a single-center, retrospective, comparative analysis of eyes developing PCE who underwent syringing prior to cataract surgery (group A) in the pre-COVID-19 era between November 1 2019 and January 31, 2020 and the eyes that underwent ROPLAS test prior to cataract surgery (group B) in the COVID-19 era between November 1, 2020 and January 31, 2021. Results: A total of 87,144 eyes underwent cataract surgery during the two time periods of the study. Syringing was performed in 48,071 eyes, whereas ROPLAS was performed in 39,073 eyes. In group A, 19 eyes (0.039%) developed PCE, whereas 20 eyes (0.051%) developed PCE in group B (P = 0.517). Between the two groups, the grade of anterior chamber cellular reaction (P = 0.675), hypopyon (P = 0.738), and vitreous haze (P = 0.664) were comparable. Gram-positive organisms were detected in 4 eyes in group A and 6 eyes in group B; 2 eyes in group A had gram-negative bacilli. The presenting visual acuity (Group A: LogMAR 1.42 and Group B: LogMAR 1.30) and final visual acuity (Group A: LogMAR 0.52 and Group B: LogMAR 0.5) were comparable between the two groups. (P = 0.544 and 0.384, respectively). Conclusion: The rates of PCE were comparable among the eyes undergoing either syringing test or ROPLAS prior to cataract surgery. [ABSTRACT FROM AUTHOR]
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- 2021
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48. Changing patterns of posterior segment trauma during the COVID-19 pandemic: A regional analysis from the Bodhya Eye Consortium.
- Author
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Parchand, Swapnil, Shenoy, Pratik, Muralidhar, Alankrita, Kohli, Gaurav, Gangwe, Anil, Agrawal, Deepanshu, Varshney, Abhishek, Mittal, Ruchi, Saha, Indranil, Madharia, Aishwarya, Singh, Shalini, Sen, Alok, Trehan, Hemant, and Agarwal, Manisha
- Abstract
Purpose: To assess changes in the presentation patterns of posterior segment trauma during the COVID-19 pandemic from six tertiary eye care institutes of North and Central India. Methods: A multicenter, hospital-based, retrospective comparative analysis of patients presenting with posterior segment trauma was done during the COVID-19 (Group A) (March 25, 2020 - September 30, 2020) period and the pre-COVID-19 (Group B) (March 25, 2019 - September 30, 2019) period. Results: A total of 405 patients were diagnosed with posterior segment trauma (Group A: 206, Group B: 199). The time interval between onset of trauma and presentation was higher in Group A (16.59 ± 29.87 days) as compared to Group B (9.41 ± 19.19 days) (P = 0.004). A majority of patients in Group A had a history of prior consultation before presentation (P = 0.049). In Group A, 120 (58.2%) patients sustained ocular trauma at home as compared to 80 (40.2%) patients in Group B (P < 0.0001). Patients presenting with light perception were significantly more in Group A (43.7%) as compared to Group B (30.2%) (P = 0.004). In Group B, 37.6% patients had presenting visual acuity of counting finger or better as compared to 27.6% patients in Group A (P = 0.07). Patients in Group A had a significantly higher proportion of post-traumatic endophthalmitis with delayed presentation (P = 0.011) and retinal detachment (P = 0.041). Patients undergoing surgery for foreign-body removal were significantly fewer in Group A (P = 0.05). Conclusion: Although the number of patients presenting with posterior segment trauma was comparable in Groups A and B, a greater number of patients sustained home injuries during the COVID-19 pandemic. A majority of these patients had delayed presentation with poor presenting visual acuity and a higher tendency of retinal detachment. [ABSTRACT FROM AUTHOR]
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- 2021
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49. Comparative Analysis of Safety and Feasibility of Suture Versus Sutureless Pediatric Cataract Surgery.
- Author
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Sen, Pradhnya, Shah, Chintan, Mohan, Amit, Sen, Alok, and Jain, Elesh
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CATARACT surgery ,PEDIATRIC surgery ,SUTURES ,SUTURING ,INTRAOCULAR pressure ,PHACOEMULSIFICATION ,COMPARATIVE studies - Abstract
Purpose: To compare the safety, feasibility, and outcomes of clear corneal cataract surgery with or without sutures in children (2 to 8 years old) with congenital or developmental cataracts. Methods: One hundred seventy consecutive eligible eyes with pediatric cataracts were randomized into treatment groups depending on closure of clear corneal incisions: suture group and sutureless hydroclosure group (sutureless group). Patients were evaluated on days 1, 7, 30, and 90 postoperatively, with an emphasis on wound leakage from incisions and complications. Results: Wound leakage from any corneal incisions was not observed in both groups. Shallow anterior chamber on the first postoperative day was observed in 2 and 3 eyes in the suture and sutureless groups, respectively (P =.48). Hypotony was not observed in any patients. Intraocular pressure measurements were comparable on follow-up visits (P >.05). Mean cylindrical error was significantly greater (P =.03) in the suture group than the sutureless group (1.01 and 0.74 diopters, respectively) after 1 month. One patient developed endophthalmitis after suture removal in the suture group. Conclusions: Sutureless hydroclosure of incisions is not inferior compared to suturing in pediatric cataracts. This avoids suture-related complications while reducing the astigmatic error and is thus potentially less amblyogenic. However, sutures must be used whenever the incision architecture is compromised. [J Pediatr Ophthalmol Strabismus. 2021;58(4):246–253.] [ABSTRACT FROM AUTHOR]
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- 2021
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50. Need for Vitreous Surgeries in Proliferative Diabetic Retinopathy in 10-Year Follow-Up: India Retinal Disease Study Group Report No. 2.
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Khan, Rehana, Surya, Janani, Rajalakshmi, Ramachandran, Rani, Padmaja Kumari, Anantharaman, Giridhar, Gopalakrishnan, Mahesh, Sen, Alok, Desai, Abhishek, Roy, Rupak, Natarajan, Sundaram, Chen, Lanin, Chawla, Gajendra, Behera, Umesh Chandra, Gopal, Lingam, Muralidharan, Vinata, Sivaprasad, Sobha, and Raman, Rajiv
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DIABETIC retinopathy ,VITRECTOMY ,RETINAL diseases ,LASER photocoagulation ,ENDOTHELIAL growth factors ,RETINAL surgery ,TYPE 1 diabetes - Abstract
Introduction: To report the 10-year rate of vitrectomies and the associated factors in people with proliferative diabetic retinopathy (PDR) from a multicentric cohort of people with diabetes mellitus. Methods: Ten centres in India with established vitreoretinal (VR) services for over 10 years were invited to provide long-term data on PDR. People with Type 1 or 2 diabetes with a clinical diagnosis of active PDR in 1 or both eyes were included. Baseline data collected included age, sex, duration of diabetes, source of referral and best-corrected visual acuity, and diabetic retinopathy status in both eyes. Available follow-up data included the numbers of panretinal photocoagulation (PRP) sessions, cataract surgery, treatment of diabetic macular oedema, use of anti-vascular endothelial growth factor (VEGF) therapy, vitrectomy with or without retinal surgeries over 10 years. Results: Over 10 years, 89% needed supplemental PRP after initial complete PRP. One-third required retinal surgery, 16% needed intravitreal injection. Men (74.5%) had significant higher risk for vitreous (VR) surgery. Of the group with low-risk PDR, 56.8% did not require VR surgery, p < 0.001. Of the patients who underwent cataract surgery and had intravitreal anti-VEGF injections, 78.5 and 28.2% needed subsequent vitreous (VR) surgery, p = 0.006 and <0.0001, respectively. Independent predictors of need for vitreoretinal surgery included those who underwent cataract surgery and those with poor baseline visual acuity (logMAR). Eyes at lower risk for VR surgery included the eyes previously treated with PRP and low-risk PDR at baseline. Conclusion: Despite initial "complete" PRP, one-third of our study cohort needed vitrectomies over 10 years, highlighting that these patients require regular follow-up for a long period of time. [ABSTRACT FROM AUTHOR]
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- 2021
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