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PurposeOur study compares the sensitivity, specificity and cost of visual acuity screening as performed by all class teachers (ACTs), selected teachers (STs) and vision technicians (VTs) in north Indian schools.MethodsProspective cluster randomized control studies are conducted in schools in a rural block and an urban-slum of north India. Consenting schools, with a minimum of 800 students aged 6 to 17 years, within a defined study region in both locations, were randomised into three arms: ACTs, STs or VTs. Teachers were trained to test visual acuity. Reduced vision was defined as unable to read equivalent of 20/30. Optometrists, who were masked to results of initial screening, examined all children. Costs were measured for all three arms.ResultsThe number of students screened were 3410 in 9 ACT schools, 2999 in 9 ST schools and 3071 in 11 VT schools. Vision deficit was found in 214 (6.3%), 349 (11.6%) and 207 (6.7%), (p ConclusionGreater accuracy and lower cost favours school visual acuity screening by visual technicians in this setting, when they are available.

Explore door-to-door eye screening in India as a model to reach school age children in need of eye care, especially during school closures due to the Covid-19 pandemic.Children between 5 and 18 years were screened in an urban-slum of Delhi from September 2020 to March 2021. Screening included capturing ocular complaints, visual acuity and conducting a torchlight examination. Children with any eye-related complaints, gross abnormality or a LogMAR acuity of more than 0.2 in either eye were referred to the nearby vision centre. Data were disaggregated by gender and age group. Reporting after referral and proportion of true positives referrals were used to assess the model.32,857 children were screened. 55% were boys. Only 917 children (2.8%) had previous eye examinations. 1814 (5.5%) children were referred. Overall compliance rate amongst those referred was 59% (1070 of 1814) and compliance was significantly higher (72%) amongst those referred with poor vision as compared to those with only ocular morbidities (38%). Overall compliance was significantly higher amongst older age group (64% vs 50%) and amongst girls than boys (61% vs 56%). 3.9% children were detected with refractive error (RE) and 2.5% with uncorrected RE which was significantly higher in girls and in older age group. Of 1070 children reporting after referral, 85% had confirmed diagnosis for RE or other ocular pathology.Door-to-door screening had good referral compliance and positive predictive value. We recommend this model as a supplement to school screening especially in regions with low enrolment and high absenteeism in schools.

Purpose: Cataract remains the leading cause of blindness and visual impairment in most low-and middle-income countries, with the greatest burden borne by women. To achieve Global Action Plan targets, cataract programs must target people, especially women, with maximum need. This study examines whether cataract surgical programs in three major north Indian eyecare institutions are equitable and describes a refined indicator for reporting equity. Methods: Retrospective one-year cross-sectional study of cataract surgery utilization using routine administrative data from three north Indian eyecare institutions. Patient data were categorized by paying category, sex, and preoperative visual acuity. Comparisons were made between payment categories and sexes. Results: Out of the total number of patients operated, 86,230 were in the non-paying category and 56,738 in the paying category. Overall, 8.2% were blind, 21.1% were severely visual impaired (SVI) or worse, and 86.1% were moderate visual impaired (MVI) or worse. Non-paying patients had a significantly higher proportion of poorer visual categories compared to paying patients [(blind, 9.7% vs. 5.8%; SVI or worse, 24.6% vs. 15.8%; and MVI or worse, 89.1% vs. 81.6%, respectively, (P < 0.001)]. Women had significantly higher proportion of poorer visual categories than men [(blind, 8.9% vs. 7.4%, SVI or worse, 21.9% vs. 20.3% and MVI or worse 87.6 vs. 84.7%) (P < 0.001)]. Conclusion: The institutions primarily provided surgery to patients with maximum need: too poor to pay, low visual acuity, and women. Similar data from all service providers of a region can help estimate the proposed “equitable cataract surgical rate”: the proportion of patients operated with maximum need among those operated in a year. This can be used for targeting people in need.

Developing countries often cite shortage of human resource, limited accessibility, low affordability, and asymmetric availability of health care resources as the provider end barriers to health care service utilization. Using the example of a market research project undertaken to establish an advanced surgical eye hospital in the Indian state of Uttar Pradesh, a decision-grid is constructed whereby health care providers’ can make informed decisions regarding expansion and service delivery. The comparative and interpretive logic-based approach utilizes public domain data coupled with field research and is apt for those working in developing countries and/or resource-crunch settings. The paradigms laid out and discussed, provide building blocks for decision-making, which if harnessed effectively, have broad applicability in terms of reaching the previously unreached and ultimately in improving health outcomes.

Purpose : Few studies have examined the extent to which school-based vision screening is sufficient to achieve universal coverage among school-aged children in India. Method : A rural administrativ...

Background: Delivery of healthcare services needs to be rooted in frameworks supporting community engagement. Our organization delivers primary eyecare through two different models. These case studies quantitatively analyse the impact of community collaboration on the effectiveness of these models-camps and vision centres.Methods: Camp data from two rural blocks of north India comparing first year of operations in 2016 with that of 2017; April-September 2017 data from two underperforming vision centreswas compared to data from same period in 2018.Natural interventions in camps included visits of local leaders to surgical centre, health talks spreading awareness regarding eyecare plusour organization, and local partners helping counsel patients, while for vision centres,staff was trained to conduct regular health talks and meetings in nearby villages. For camps, before and after data on attendance, proportion of people over 50, proportion of people getting operated among those advised and acquisition cost were analysed,for vision centres referral from these centres wereanalysed.Results: Parameters for both models showed improvement inthe second year. Conclusion: Sustained presence in the community and collaboration with local stakeholders increases effectiveness of service delivery at primary level.

Background A vision center (VC) is a significant eye care service model to strengthen primary eye care services. VCs have been set up at the block level, covering a population of 150,000-250,000 in rural areas in North India. Inadequate use by rural communities is a major challenge to sustainability of these VCs. This not only reduces the community’s vision improvement potential but also impacts self-sustainability and limits expansion of services in rural areas. The current literature reports a lack of awareness regarding eye diseases and the need for care, social stigmas, low priority being given to eye problems, prevailing gender discrimination, cost, and dependence on caregivers as factors preventing the use of primary eye care. Objective Our organization is planning an awareness-cum-engagement intervention—door-to-door basic eye checkup and visual acuity screening in VCs coverage areas—to connect with the community and improve the rational use of VCs. Methods In this randomized, parallel-group experimental study, we will select 2 VCs each for the intervention arm and the control arm from among poor, low-performing VCs (ie, walk-in of ≤10 patients/day) in our 2 operational regions (Vrindavan, Mathura District, and Mohammadi, Kheri District) of Uttar Pradesh. Intervention will include door-to-door screening and awareness generation in 8-12 villages surrounding the VCs, and control VCs will follow existing practices of awareness generation through community activities and health talks. Data will be collected from each VC for 4 months of intervention. Primary outcomes will be an increase in the number of walk-in patients, spectacle advise and uptake, referral and uptake for cataract and specialty surgery, and operational expenses. Secondary outcomes will be uptake of refraction correction and referrals for cataract and other eye conditions. Differences in the number of walk-in patients, referrals, uptake of services, and cost involved will be analyzed. Results Background work involved planning of interventions and selection of VCs has been completed. Participant recruitment has begun and is currently in progress. Conclusions Through this study, we will analyze whether our door-to-door intervention is effective in increasing the number of visits to a VC and, thus, overall sustainability. We will also study the cost-effectiveness of this intervention to recommend its scalability. Trial Registration ClinicalTrials.gov NCT04800718; https://clinicaltrials.gov/ct2/show/NCT04800718 International Registered Report Identifier (IRRID) DERR1-10.2196/31951

BACKGROUND A vision center (VC) is a significant eye care service model to strengthen primary eye care services. VCs have been set up at the block level, covering a population of 150,000-250,000 in rural areas in North India. Inadequate use by rural communities is a major challenge to sustainability of these VCs. This not only reduces the community’s vision improvement potential but also impacts self-sustainability and limits expansion of services in rural areas. The current literature reports a lack of awareness regarding eye diseases and the need for care, social stigmas, low priority being given to eye problems, prevailing gender discrimination, cost, and dependence on caregivers as factors preventing the use of primary eye care. OBJECTIVE Our organization is planning an awareness-cum-engagement intervention—door-to-door basic eye checkup and visual acuity screening in VCs coverage areas—to connect with the community and improve the rational use of VCs. METHODS In this randomized, parallel-group experimental study, we will select 2 VCs each for the intervention arm and the control arm from among poor, low-performing VCs (ie, walk-in of ≤10 patients/day) in our 2 operational regions (Vrindavan, Mathura District, and Mohammadi, Kheri District) of Uttar Pradesh. Intervention will include door-to-door screening and awareness generation in 8-12 villages surrounding the VCs, and control VCs will follow existing practices of awareness generation through community activities and health talks. Data will be collected from each VC for 4 months of intervention. Primary outcomes will be an increase in the number of walk-in patients, spectacle advise and uptake, referral and uptake for cataract and specialty surgery, and operational expenses. Secondary outcomes will be uptake of refraction correction and referrals for cataract and other eye conditions. Differences in the number of walk-in patients, referrals, uptake of services, and cost involved will be analyzed. RESULTS Background work involved planning of interventions and selection of VCs has been completed. Participant recruitment has begun and is currently in progress. CONCLUSIONS Through this study, we will analyze whether our door-to-door intervention is effective in increasing the number of visits to a VC and, thus, overall sustainability. We will also study the cost-effectiveness of this intervention to recommend its scalability. CLINICALTRIAL ClinicalTrials.gov NCT04800718; https://clinicaltrials.gov/ct2/show/NCT04800718 INTERNATIONAL REGISTERED REPORT DERR1-10.2196/31951

ObjectivesTo assess COVID-19-related awareness and knowledge among truck drivers across India and report prevention practices followed, and challenges faced, by them during the COVID-19 lockdown.DesignCross-sectional study.SettingDelhi, Kanpur, Kolkata and Bangalore from July to September 2020.ParticipantsData were collected in Hindi using a structured questionnaire via telephonic interviews. Minimum 200 drivers were included from each location.Outcome measuresSociodemographic profile, awareness regarding COVID-19, knowledge regarding infection sources, disease spread and vulnerable populations, prevention practices followed and challenges faced. Information sources were also assessed.ResultsFisher’s exact test and Analysis of variance (ANOVA) test were used to check for significant differences across proportions. P value less than 0.05 was considered significant. Overall, 1246 drivers were included, with 72% response rate. Of 1246 drivers, 65% were 30–50 years of age. A majority correctly answered knowledge questions regarding communicability (95%) and fatality (66%). Fifty per cent drivers were aware of treatability of the disease, while only 43% and 24% correctly reported all signs and symptoms and routes of transmission, respectively. No driver was aware of all high-risk populations. Overall Knowledge Score is significantly associated with region. Mobile phones were the primary source of information across all regions. Over two-third drivers follow all prevention practices regularly, which differed significantly across regions. Following standard prevention practices was positively correlated with higher knowledge scores and was significantly correlated with mask use. Worry about the disease was common. Less than 40% drivers received full payment for work during this period, while 25% drivers were unable to return home due to the pandemic. Seven per cent and 26% drivers had either limited or no access to food and health services, respectively.ConclusionsAwareness activities and employer provisioned social security/health insurance might safeguard this vulnerable population till the pandemic fully abates as well as in similar situations in the future.

This study assesses the practice patterns of diagnosing ophthalmologists, as reported by glaucoma patients attending specialty glaucoma clinics in urban and rural areas of North India, for a second opinion. Prospective cross-sectional study using a structured interview-based survey was conducted from 1 November 2011 to 31 October 2012 on patients attending two specialty glaucoma care facilities in North India. Both clinics were in North India; however, one was rural (Kaithal) and one was urban (Delhi). Patients were asked through descriptions of machines and processes, regarding practice patterns of their glaucoma diagnosing ophthalmologists. The interview was conducted by ophthalmic assistants in tune with the vernacular of the region, in a language understood by the interviewee. A total of 1506 patients consented to participate in the survey. The majority of patients reported undergoing tests for intraocular pressure measurement; however, 56–60% of these tests were carried out by the non-contact tonometer. More than 90% of patients reported no knowledge regarding the type and severity of the glaucoma they suffered from, and even less reported undergoing gonioscopy (3.6% Karnal and 16% Delhi). 84–86% patients who underwent perimetry reported undergoing at least some digital imaging of the optic disc. Better counselling of, and communication with, the patient would help increase their awareness regarding their condition and the care required. This has the potential to enable better compliance with and adherence to treatment. Standardized training of ophthalmologists to improve clinical diagnosis of glaucoma would also go a long way.

Purpose: The presence of central visual field loss does not infer the extent of peripheral visual field loss. In advanced stage glaucoma, we evaluated whether automated kinetic perimetry provided additional visual field information to that of central static perimetry. Materials and Methods: We undertook a prospective cross-sectional study of advanced-stage glaucoma defined as stages 3–4. Visual field assessment for right and left eyes was undertaken within one clinic visit using the Octopus 900 G programme and kinetic strategy. Results: We recruited 126 patients (170 eyes). Mean patient age at assessment was 55.86 years (SD 15.15). Mean kinetic reaction time was 1503.96 ms (SD 801.68). Kinetic I4e was plotted in 71% of eyes with an unadjusted area of 2513.68 degrees2 (SD 2397.91) and mean isopter radius of 23.16 degrees (SD 13.07). Kinetic I2e was plotted in 53.5% of eyes with an unadjusted area of 627.07 degrees2 (SD 1291.94) and mean isopter radius of 7.47 degrees (SD 10.59). Increased reaction time was associated with a poorer visual field (p = .001). Mean sensitivity, mean deviation and standard loss variance values on static perimetry were higher in patients who had a defined kinetic field boundary than in patients with no kinetic response to I4e stimulus (p = .0001). However, this corresponded to only small-to-medium correlation between static fields and existent kinetic fields: the presence of poor static fields did not always infer a poor kinetic visual field as poor static fields could also have good kinetic visual fields. Conclusions: Although we confirmed a lack of agreement and only a small to medium correlation between the extents of central versus peripheral visual field loss, automated kinetic perimetry did provide additional peripheral (outside the static 30-degree central field) visual field information which was clinically useful in the presence of non-informative severely defected central visual fields.

ObjectivesIn this study, we sought to evaluate the extent of further visual field that could be assessed when using stimulus size V in standard automated perimetry compared with size III in advanced stage glaucoma and whether cut-off values could be determined for when to switch from size III to size V.DesignProspective cross-sectional study.SettingSingle-centre outpatient eye clinic in India (New Delhi).ParticipantsAdvanced stage glaucoma defined as stages 3–4.InterventionCentral static perimetry with Octopus 900 G programme (size III stimulus dynamic strategy) and low vision central programme (size V stimulus dynamic strategy).Primary and secondary outcome measuresVisual field assessment for right and left eyes with both sizes III and V were undertaken within one clinic visit.ResultsWe recruited 126 patients (170 eyes). Mean patient age at assessment was 55.86 years (SD 15.15). Means (SD) for size III versus size V, respectively, were 6.94 dB (5.58) and 12.98 dB (7.77) for mean sensitivity, 20.02 dB (5.67) and 19.22 dB (7.74) for mean deviation, 5.89 dB (2.29) and 7.69 dB (2.78) for standard loss variance and 3.32 min (1.07) and 6.40 min (1.43) for test duration. All except mean deviation were significantly different between size III and V tests.ConclusionUseful visual field information was obtained with size V stimuli which allowed continued monitoring of these patients that was not possible with size III. Increased test duration, standard loss variance and mean sensitivity were found with size V, as expected, given that more visual responses were obtained with the increased target size. A switch from size III to V may be considered when mean sensitivity reaches 10 dB and/or mean deviation reaches 18 dB.

Aims: This study analyzes the prevalence and types of refractive errors among truck drivers, as well as their uptake of glasses. Subjects and Methods: Retrospective cross-sectional study of data collected between July 2017 and June 2018, through eye camps held across the national capital region. An optometrist conducted a comprehensive eye examination. Refractive error was defined as myopia (spherical equivalent of at least −0.5 diopter [D]), hyperopia (spherical equivalent of at least +0.5 D), or astigmatism (only cylinder of 0.5 D or more). Drivers requiring spectacles to read at a normal distance (35–40 cm) were categorized as having presbyopia. Those needing both distance and near vision correction were analyzed separately. Statistical Analysis: Data were analyzed for the prevalence of refractive errors and its types. Spectacles uptake and its association with age categories, number of affected eyes, type and severity of refractive errors were analyzed. Statistical analysis was carried out using R software version 3.1.1 and Excel 2013. Results: Refractive error (including presbyopia) was over 26% in the 4059 truck drivers screened. 8.8% needed distance correction, 24.3% needed near correction and 6.6% needed both, at least in one eye. Uptake was only 47% among those prescribed glasses and was higher among drivers requiring only near correction. Conclusions: Our study highlights the importance of eye examination among truckers. There is a need to increase the uptake of spectacles by increasing awareness and developing better models of spectacle delivery.

Purpose: Vision loss in Sturge-Weber syndrome (SWS), a rare congenital disorder, is primarily due to glaucoma. Methods: We reviewed the data of all consecutive SWS-associated glaucoma cases in patients who had undergone combined trabeculotomy-trabeculectomy (CTT) at a tertiary glaucoma facility between January 1993 and December 2015. We analyzed the preoperative and postoperative intraocular pressure (IOP), corneal clarity, visual acuity, success rate, need for repeat surgery, and number of topical antiglaucoma medications needed at last follow-up. Results: Twenty-six eyes of 20 patients with SWS (surgical age 0.7-96 months; mean 18.64 ± 29.74 months) had undergone primary CTT. The mean preoperative IOP was 32.76 ± 7.86 mm Hg (range 22-54 mm Hg) with medication (mean 3.11 ± 1.17; range 1-5). At the last follow-up (61-288 months); mean SD 134.73 ± 67.77 months), two eyes had IOP Conclusions: Combined trabeculotomy-trabeculectomy showed promising results as a treatment for SWS-associated glaucoma in children. Long-term visual and surgical outcomes are encouraging.

The aim of the study was to assess level of glaucoma awareness amongst glaucoma patients by studying characteristics amongst urban and rural glaucoma populations in North India. A questionnaire was designed and administered after appropriate validation amongst patients to identify determinants of glaucoma awareness. Trained personnel delivered the 11 questions to 1506 patients, aged 18 and above through random sampling. The questionnaire evaluated source of awareness, education, gender, location and age on the level of awareness of glaucoma. The outcomes were assessed based on patient’s responses. Age and education essay a significant role in glaucoma awareness. Awareness levels increased with the level of education significantly in both rural and urban settings (P value