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In this prospective interventional case series that included 474 patients, there were no significant differences in visual field (VF) parameters between fields from patients tested one-at-a-time and simultaneously, except for fixation losses.To test for differences in reliability and performance parameters of patients taking VF tests while using a remote patient monitoring system to supervise 1 or 2 test sessions simultaneously.In a prospective interventional case series, 861 eyes of 474 consecutive patients undergoing automated perimetry during a 6-month period were monitored during the test using an audio/video-enabled remote monitoring system. Two patients were simultaneously tested (simultaneous test) by a single technician if they were ready for testing at the same time. Patients were otherwise tested individually (single test). Performance and reliability parameters including false negatives, false positives, fixation losses, mean deviation, pattern standard deviation, VF index, and test duration were compared between patients undergoing simultaneous tests and single tests. Patients undergoing remotely monitored testing, for whom a prior VF could be found, had performance and reliability parameters compared with those prior tests. VFs were analyzed separately for 2 test strategies: SITA Standard 24-2 and SITA Faster 24-2C.No significant parameter differences were observed among SITA Standard 24-2 VFs between single and simultaneous tests, except for fixation losses (single: 16.8±19.7%, simultaneous: 22.5±25.0%, P=0.01). Similarly, there were no significant differences observed among SITA Faster 24-2C tests. Paired analyses comparing remotely monitored VFs with prior traditionally monitored VFs showed no significant differences for any parameters, except for fewer fixation losses with remote monitoring (traditional: 23.6±27.5%, remote 17.7±20.8%, P=0.003).Remote patient monitoring of VF testing enabled technicians to supervise testing of 2 patients simultaneously with preserved performance and reliability.

Background The COVID-19 pandemic has accelerated the adoption of telemedicine in the field of ophthalmology. Despite the increasing utilization of telemedicine, there is a lack of formal training in ophthalmology residency programs to ensure ophthalmologists are prepared to conduct virtual eye exams. Objective This article aims to assess the impact of an ophthalmic telemedicine curriculum on ophthalmology residents' self-reported knowledge acquisition in conducting telemedicine eye exams, perceived ability to diagnose, manage, and triage common eye diseases, and evaluate their attitudes toward the current and future use of teleophthalmology. Methods This single-center study at Massachusetts Eye and Ear used a nonvalidated pre- and postcurriculum survey conducted during the 2020 to 2021 academic year among ophthalmology residents. Participants engaged in an ophthalmic telemedicine curriculum that consisted of interactive didactic lectures and electronic postdidactic assessments. Results Twenty-four residents (100%) completed a precurriculum survey, while 23 of 24 (95.8%) residents completed both the telemedicine curriculum and a postcurriculum survey. On a five-point Likert scale, the median interquartile range (IQR) scores for confidence with setup/logistics, history taking, examination, documentation, and education increased from 2.5 (2.0–4.0) to 4.0 (3.5–4.5) (p = 0.001), 3.0 (3.0–4.0) to 5.0 (4.0–5.0) (p Conclusion The implementation of an ophthalmic telemedicine curriculum increased resident confidence and self-reported knowledge across all logistical and clinical components of virtual ophthalmic care. Formal telehealth curricula can address an unmet educational need of resident trainees in an era of rapid uptake and utilization of telehealth services.

To evaluate gender-based patterns of utilization and outcomes of arteriovenous fistulas (AVFs) and grafts (AVGs) in a population-based cohort of hemodialysis (HD) patients.A retrospective analysis of all patients in the United States Renal Data System who had an AVF or AVG placed for HD access (January 2007 to December 2014). Outcomes were access maturation, conduit patency, infection, and mortality. Chi-square, Student's t, Kaplan-Meier, and multivariable Cox regression analyses were employed accordingly.There were 456,693 (57%) males and 341,571 (43%) females who initiated HD via AVF (16%), AVG (4%) and HD catheter (80%). There was a 30% decrease in odds of initiating HD with AVF in females compared with males (adjusted odds ratio [aOR]: 0.70; 95% confidence interval [CI]: 0.69-0.71, P 0.001). The use of HD catheter as a bridge to AVF was 36% higher in females compared with males (aOR: 1.36; 95% CI: 1.33-1.39, P 0.001). Preemptive AVF maturation was 78% for males and 76% for females (P 0.001). The risk-adjusted analyses showed a 7% decrease in AVF maturation comparing females with males (adjusted hazard ratio [aHR]: 0.93; 95% CI: 0.92-0.95, P 0.001) but no difference in AVG maturation (aHR: 0.99; 95% CI: 0.97-1.01, P = 0.46) After risk adjustment, primary (AVF: aHR-0.87; AVG: aHR-0.96), primary-assisted (AVF: aHR-0.84; AVG: aHR-0.97), and secondary (AVF: aHR-0.85; AVG: aHR-0.98) patency were lower for females compared with males (all P 0.05). Initiation of HD with a catheter and conversion to AVF was associated with lower patency in males (aHR: 0.29; 95% CI: 0.28-0.29; P 0.001) and females (aHR: 0.31; 95% CI: 0.30-0.31; P 0.001) compared with AVF initiates. Patient survival was higher for females compared with males who received AVF (aHR: 1.08; 95% CI: 1.07-1.09; P 0.001) and AVG (aHR: 1.13; 95% CI: 1.11-1.15; P 0.001). Initiation with HD catheter and subsequent conversion to AVF was associated with an increase in mortality for males (aHR: 1.45; 95% CI: 1.43-1.47; P 0.001) and females (aHR: 1.44; 95% CI: 1.44-1.52; P 0.001) compared with initiation via AVF. There was no significant difference in severe AVG infection comparing females with males (aHR: 1.05; 95% CI: 0.98-1.13; P = 0.16).Female gender is associated with a lower prevalence of preemptive AVF's, higher utilization of catheters as a bridge to AVF, and lower patency compared with males. There was no difference in access maturation but patient survival was higher for females compared with males.

The feasibility of implementing a computerized adaptive test (CAT) system in routine clinical care in ophthalmology has not been assessed. We evaluated the implementation of a glaucoma-specific CAT (GlauCAT) in outpatients at Massachusetts Eye and Ear Institute.In this implementation study (July 2020-April 2021), 216 adults (mean ± SD age 64.8 ± 15.3 years; 56.0% women) completed six adaptive GlauCAT quality of life (QOL) tests on an internet-enabled tablet at the clinic. A real-time printable report summarizing domain scores was shared with physicians prior to consultation. The implementation was evaluated using Proctor's outcomes: acceptability (patient satisfaction); appropriateness (independent complete rate [%]); feasibility (acceptance rate [%]; completion time); and fidelity (percentage of patients discussing GlauCAT results with their physician). Physician barriers/facilitators were explored using open-ended questions.Patients' mean ± SD satisfaction score was 3.5 ± 0.5 of 4, with95% of patients willing to recommend it to others. Of the 216 (89.2%) patients accepting to participate, 173 (80%) completed GlauCAT independently. Patients took 8 minutes and 5 seconds (median) to complete all 6 GlauCAT tests. Almost two-thirds (n = 136/216) of the patients reported discussing their GlauCAT results with their doctor. Physicians described the GlauCAT summary report as helpful and user-friendly, although lack of time and uncertainty about how to action information were reported.Pilot implementation of six GlauCAT QOL tests in glaucoma outpatient clinics was feasible and acceptable. Integration of GlauCAT with electronic medical records (EMRs) and evaluation of long-term implementation outcomes are needed.GlauCAT's multiple outcomes and low test-taking burden makes it attractive for measuring glaucoma-specific QOL in routine clinical care.

ObjectivesMeasure quality of life (QoL) outcomes using a novel computerised adaptive test in a clinical setting, and determine the social and demographic factors associated with specific QoL domains in patients with glaucoma.DesignCross-sectional study between July 2020 and April 2021.ParticipantsEnglish-speaking adults presenting to glaucoma clinic. Patients with cognitive impairment on a six-item cognitive impairment screen or with intraocular surgery within 90 days prior to presentation were excluded.ResultsOf 206 patients surveyed, mean age was 64.8 years (SD 15.2), 122 (56.7%) were female and 159 (74.7%) were white. On multivariable regression, visual acuity was associated with greater activity limitation (β=−2.8 points, 95% CI −3.8 to –1.8, pConclusionsIn a busy glaucoma clinic where QoL was measured with online adaptive tests for glaucoma, we found that several demographic and clinical variables are associated with lower domain scores, suggesting that patients with predisposing demographic and clinical factors are at a higher risk of worse QoL.

Background To study the utility of a teleophthalmology program to diagnose and triage common ophthalmic complaints presenting to an ophthalmic emergency room. Methods Prospective, observational study of 258 eyes of 129 patients presenting to the Massachusetts Eye and Ear Infirmary Emergency Ward (MEE EW) who completed a questionnaire to gather chief complaint (CC), history of present illness, and medical history. Anterior and posterior segment photographs were collected via iPhone 5 C camera and a Canon non-mydriatic fundus camera, respectively. Ophthalmic vital signs were collected. All information was reviewed remotely by three ophthalmologists; a diagnosis and urgency designation were recorded. The remote assessment was compared to gold standard in-person assessment. Results The 129 recruited patients collectively contributed 220 visual complaints, of which 121 (55%) were from females with mean age 56.5 years (range 24–89). Sensitivities and specificities for telemedical triage were as follows: eye pain (n = 56; sensitivity: 0.58, CI [0.41, 0.74]; specificity: 0.91, CI [0.80, 1]), eye redness (n = 54; 0.68, CI [0.50, 0.86]; 0.93, CI [0.84, 1]), blurry vision (n = 68; 0.73, CI [0.60, 0.86]; 0.91, CI [0.80, 1]), and eyelid complaints (n = 42; 0.67, CI [0.43, 0.91]; 0.96, CI [0.89, 1]). The remote diagnostic accuracies, as stratified by CC, were eye pain (27/56; 48.21%), eye redness: (32/54; 59.26%), blurry vision: (30/68; 44.11%), eyelid (24/42; 57.14%). Conclusions Telemedical examination of emergent ophthalmic complaints consisting of a patient questionnaire, anterior segment and fundus photos, and ophthalmic vital signs, may be useful to reliably triage eye disease based on presenting complaint.

Cardiac surgery is associated with a significant decrease in hematocrit. It is unclear whether that occurs from hemodilution, loss of red cells, or both. Hematocrit is a major determinant of transfusion decisions although transfusion is associated with increased morbidity and mortality. Physicians must determine whether this anemia is the result of hemodilution or red blood cell loss as the former would be treated with packed red blood cell transfusions and the latter by diuresis. We hypothesize that the decrease in hematocrit observed in cardiac surgery is due to hemodilution.Blood volume (BV), plasma volume (PV), and red blood cell volume (RBCV) were measured in 54 patients undergoing coronary artery bypass graft surgery, valve surgery, or coronary artery bypass graft/valve surgery. Measurements were made preoperatively, immediately postoperatively, and 2 hours after surgery utilizing a dilution tracer method and hematocrit measurements.Preoperative average BV was 6,094 mL (SD 1,904 mL), RBCV was 2,024 mL (SD 720 mL), and PV was 4,070 mL (SD 1,339 mL). Postoperative average BV was 4,834 mL (SD 1,432 mL), RBCV 1,226 mL (SD 527 mL), and PV 3,607 mL (SD 993 mL). Blood volume decreased 18% (p0.0001), RBCV decreased 38% (p0.001), and PV decreased 8% (p0.012). There were no significant changes between postoperative values and those 2 hours later in the cardiac surgery intensive care unit.Decreases in hematocrit observed in cardiac surgery patients are due to significant red blood cell losses and not to hemodilution. Red blood cell losses averaged 38%. Plasma volume also decreased.

Ellen H Koo,1 Allen O Eghrari,2 Ryan S Meshkin,2 Wei Shi,1 William J Feuer,1 Karen G DeMarco,3 Arthur C Kurz3 1Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, 2Wilmer Eye Institute, Johns Hopkins University School of Medicine, 3KeraLink International, Baltimore, MD, USA Aim: Our study was conducted to evaluate whether higher temperature leads to increased – or wider – scroll widths of the Descemet’s membrane endothelial keratoplasty (DMEK) donor graft.Purpose: To investigate the effects of temperature and fluid media on the DMEK donor graft scroll widths.Materials and methods: This research work was a laboratory investigation. Baseline cell count was taken via specular microscopy for the donor corneas at room temperature (20°C–25°C). The endothelium sides of the donor corneas were stained with Trypan Blue Solution 0.4% for 30s, and the Descemet’s membranes were stripped. The DMEK donor grafts were placed into three different fluid media – Optisol®, Balanced Salt Solution (BSS), and BSS PLUS® (BSS Plus). The DMEK donor grafts were then transferred into cold temperature (4°C) for 60 min, after which the donor grafts’ scroll widths were examined and measured. The donor grafts were then warmed in the incubator and brought to physiological temperature (35°C–37°C), and their scroll widths were examined and measured again.Results: In 30 measurements of ten tissues across three temperature and fluid conditions, the average scroll width measured 1.73mm, ranging from 1.1 to 2.9mm. In a mixed linear model, the scroll widths increased with temperature (P=0.02). There was no significant difference in scroll widths among the three solutions (P=0.84, mixed linear model).Conclusion: We observed an increase in DMEK donor graft scroll widths with higher temperatures. The usage of BSS Plus as media solution could also lead to smaller DMEK donor graft scroll widths, compared with BSS, but our study does not establish this. Keywords: DMEK, graft scroll, graft conformation, DMEK scroll, DMEK graft&nbsp