Outcomes of four-point suture fixated and two-point sutureless posterior chamber IOLs combined with pars plana vitrectomy.

BACKGROUND: While each scleral fixation method has its own advantages, there is a lack of strong evidence to suggest a superior technique. Advances in cataract surgery expand patient eligibility for successful cataract extraction, benefitting a growing population of pseudophakic patients. However, implantation of secondary intraocular lens (IOL) with compromised anterior or posterior capsule is a more challenging task. Each method of scleral fixation has its own advantages and none of them has strong evidence to be superior. This paper describes postsurgical outcomes of two scleral intraocular(IOL) fixation techniques combined with pars plana vitrectomy(PPV) from a single tertiary referral eye center. METHODS: Patients underwent PPV and IOL implantation with either four-point sutured scleral fixation (Akreos AO60(AK); n = 24) or two-point sutureless flanged intrascleral fixation (CT Lucia(CTL); n = 7). Reports include IOL and sclerotomy placement, fixation techniques, and IOL model. RESULTS: Thirty-one eyes of thirty patients were analyzed. Average change in vision from baseline measurement was LogMAR - 0.68 ± 0.66 and - 0.90 ± 0.63 for AK and CTL groups, respectively. Average postoperative refractive error was - 0.3 ± 1.03 D (AK) and 0.4 ± 0.60 D (CTL). No opacification cases of Akreos lens were found in this study with the longest follow up of 53 months. CONCLUSIONS: Both methods of implantation (sutured and sutureless) could provide good visual and refractive outcomes. Minimal complication rates were reported despite including patients with multiple comorbidities, making both techniques an attractive choice for secondary IOL implantation.

New Ways to Detect Pediatric Sickle Cell Retinopathy: A Comprehensive Review.

Sickle retinopathy reflects disease-related vascular injury of the eye, which can potentially result in visual loss from vitreous hemorrhage or retinal detachment. Here we review sickle retinopathy among children with sickle cell disease, describe the epidemiology, pediatric risk factors, pathophysiology, ocular findings, and treatment. Newer, more sensitive ophthalmological imaging modalities are available for retinal imaging, including ultra-widefield fluorescein angiography, spectral-domain optical coherence tomography, and optical coherence tomography angiography. Optical coherence tomography angiography provides a noninvasive view of retinal vascular layers that could previously not be imaged and can be quantified for comparative or prospective analyses. Ultra-widefield fluorescein angiography provides a more comprehensive view of the peripheral retina than traditional imaging techniques. Screening for retinopathy by standard fundoscopic imaging modalities detects a prevalence of approximately 10%. In contrast, these more sensitive methods allow for more sensitive examination that includes the retina perimeter where sickle retinopathy is often first detectable. Use of these new imaging modalities may detect a higher prevalence of early sickle pathology among children than has previously been reported. Earlier detection may help in better understanding the pathogenesis of sickle retinopathy and guide future screening and treatment paradigms.

Etiology of Retinitis Pigmentosa.

Retinitis pigmentosa (RP) is a set of symptoms including tunnel vision, night blindness, and progressive vision loss, stemming from a very heterogeneous set of causes-it can result from a several different kinds of mutations (non-syndromic) in conjunction with other symptoms, as part of a larger syndrome (syndromic), or secondary to an organ system disease state (secondary RP). This chapter explores and elucidates these various causes of RP.

Surgical Approach with Pars Plana Vitrectomy for Subretinal Gene Therapy.

Gene therapy is emerging as a treatment for inherited diseases including retinitis pigmentosa. Through surgery, specifically with pars plana vitrectomy, the subretinal space can be accessed to directly administer this treatment. The goal herein is to provide an overview of this approach.

Detecting Eye Disease Using Vision Transformers Informed by Ophthalmology Resident Gaze Data.

We showcase two proof-of-concept approaches for enhancing the Vision Transformer (ViT) model by integrating ophthalmology resident gaze data into its training. The resulting Fixation-Order-Informed ViT and Ophthalmologist-Gaze-Augmented ViT show greater accuracy and computational efficiency than ViT for detection of the eye disease, glaucoma.Clinical relevance- By enhancing glaucoma detection via our gaze-informed ViTs, we introduce a new paradigm for medical experts to directly interface with medical AI, leading the way for more accurate and interpretable AI 'teammates' in the ophthalmic clinic.

Extracting decision-making features from the unstructured eye movements of clinicians on glaucoma OCT reports and developing AI models to classify expertise.

This study aimed to investigate the eye movement patterns of ophthalmologists with varying expertise levels during the assessment of optical coherence tomography (OCT) reports for glaucoma detection. Objectives included evaluating eye gaze metrics and patterns as a function of ophthalmic education, deriving novel features from eye-tracking, and developing binary classification models for disease detection and expertise differentiation. Thirteen ophthalmology residents, fellows, and clinicians specializing in glaucoma participated in the study. Junior residents had less than 1 year of experience, while senior residents had 2-3 years of experience. The expert group consisted of fellows and faculty with over 3 to 30+ years of experience. Each participant was presented with a set of 20 Topcon OCT reports (10 healthy and 10 glaucomatous) and was asked to determine the presence or absence of glaucoma and rate their confidence of diagnosis. The eye movements of each participant were recorded as they diagnosed the reports using a Pupil Labs Core eye tracker. Expert ophthalmologists exhibited more refined and focused eye fixations, particularly on specific regions of the OCT reports, such as the retinal nerve fiber layer (RNFL) probability map and circumpapillary RNFL b-scan. The binary classification models developed using the derived features demonstrated high accuracy up to 94.0% in differentiating between expert and novice clinicians. The derived features and trained binary classification models hold promise for improving the accuracy of glaucoma detection and distinguishing between expert and novice ophthalmologists. These findings have implications for enhancing ophthalmic education and for the development of effective diagnostic tools.

Orbital perineurioma in the setting of dacryocystitis.

A benign orbital perineurioma was discovered just posterior to the lacrimal sac during surgery for recurrent bacterial dacryocystitis in an 83-year-old woman. The tumor was circumscribed but nonencapsulated and located exterior to the lacrimal sac mucosa. It was composed of cytologically bland spindle cells organized in graceful, elongated, and twisted bundles reminiscent of a storiform pattern. Immunohistochemical staining displayed a diagnostic pattern of Claudin-1, GLUT-1, and epithelial membrane antigen positivity. Malignant transformation is virtually unknown, even with incomplete excision. The differential diagnosis includes neurofibroma, schwannoma, leiomyoma, solitary fibrous tumor (CD34 positive), and low-grade fibromyxoid sarcoma.

CYTOMEGALOVIRUS RETINITIS WITH BELATACEPT IMMUNOSUPPRESSION.

PURPOSE: To report two cases of cytomegalovirus (CMV) retinitis in renal transplant patients after conversion to belatacept immunosuppression. METHODS: Case report. RESULTS: Case A was a 41-year-old African American man with no ocular history, chronic hepatitis B infection on entecavir, status-post living relative renal transplant for end-stage renal disease secondary to IgA nephropathy presented with a chief complaint of "blurry vision" in his right eye. Fundoscopic examination of the right eye revealed perivascular retinitis of the superior arcade extending temporally and a lesion nasal to the optic disk. The patient was diagnosed with CMV retinitis with macular involvement. Case B was a 52-year-old woman with an ocular history significant for bilateral vein occlusions treated with laser, and a medical history of hypertension, hyperlipidemia, and end-stage renal disease secondary to hypoplastic kidney status-post deceased donor renal transplant presented with one week of blurred vision in the right eye. Fundoscopic examination of the right eye revealed macular star configuration of exudates, as well as subretinal fibrosis temporal to the macula. Fundoscopic examination of the left eye showed Grade 4 vitreous haze and multiple areas of retinal whitening and hemorrhage, consistent with CMV retinitis infection. The patient was diagnosed with bilateral CMV retinitis, with macular involvement in the right eye. CONCLUSION: Renal transplant patients converted to belatacept immunosuppression may be at an increased risk for herpes virus infection, and thus herpes virus retinitis. Although the degree of risk remains uncharacterized, patients on belatacept therapy who are at the high risk of CMV infection (i.e., donor-positive/recipient-negative patients) should be counseled on the presenting signs and symptoms of CMV retinitis. In these cases, clinicians should also consider regular monitoring of serum CMV titers or continuation of antiviral prophylaxis.

IPSILATERAL BULLOUS EXUDATIVE RETINAL DETACHMENT ASSOCIATED WITH EXTRACORPOREAL MEMBRANE OXYGENATION.

PURPOSE: To describe the first known case of an extracorporeal membrane oxygenation (ECMO)-related complication in an adult. METHODS: Case report. RESULTS: A 34-year-old man awaiting a lung transplant for interstitial lung disease was connected to an ECMO circuit as a bridge to lung transplant, with a drainage catheter attached to his right internal jugular vein. Shortly after he was cannulated, he developed blurred vision in his right eye and was found to have a progressively worsening bullous exudative retinal detachment. After receiving a lung transplant and getting decannulated from ECMO, his bullous detachment rapidly improved. The patient's clinical course as well as his ophthalmic testing showed findings inconsistent with alternative diagnoses such as central serous chorioretinopathy. His findings were best explained as a complication of ECMO cannulation. CONCLUSION: Extracorporeal membrane oxygenation may be associated with bullous exudative retinal detachment in rare cases where there is a possible anatomical or physiological predisposition.

Salmon patch-associated vitreous hemorrhage in non-proliferative sickle cell retinopathy masquerading as infectious uveitis.

PURPOSE: To report three cases of non-proliferative sickle cell retinopathy (NPSR) with vitreous hemorrhage masquerading as infectious uveitis. OBSERVATIONS: Three patients were referred from ophthalmologists to our practices with clinical findings suggestive of infectious uveitis. The first patient was referred for new-onset floaters in both eyes, bilateral vitritis and dome-shaped lesions on B-scan ultrasound. He was initially treated for tuberculosis uveitis due to a positive purified protein derivative test. The second patient was referred with floaters and hazy vision in the setting of recent fever and headache and was also reported to have vitritis and unilateral yellow vitreoretinal lesions on fundoscopy. She was initially treated for toxoplasmosis and endogenous endophthalmitis. The third patient presented with flashes, floaters, and decreased vision four months after a ring-enhancing lesion was found on brain imaging, and was found to have unilateral vitritis with yellow vitreoretinal lesions. He was initially started on topical steroids and cycloplegics empirically for uveitis. All patients were ultimately diagnosed as having manifestations of NPSR, including vitreous hemorrhage, and dehemoglobinized salmon patch hemorrhages. CONCLUSIONS AND IMPORTANCE: NPSR can occasionally masquerade as infectious uveitis. Obtaining a detailed history with relevant ancillary testing, along with performing a careful physical exam to recognize important clues, can help the physician arrive at the correct diagnosis in these equivocal cases.

A multimodal deep learning system to distinguish late stages of AMD and to compare expert vs. AI ocular biomarkers.

Within the next 1.5 decades, 1 in 7 U.S. adults is anticipated to suffer from age-related macular degeneration (AMD), a degenerative retinal disease which leads to blindness if untreated. Optical coherence tomography angiography (OCTA) has become a prime technique for AMD diagnosis, specifically for late-stage neovascular (NV) AMD. Such technologies generate massive amounts of data, challenging to parse by experts alone, transforming artificial intelligence into a valuable partner. We describe a deep learning (DL) approach which achieves multi-class detection of non-AMD vs. non-neovascular (NNV) AMD vs. NV AMD from a combination of OCTA, OCT structure, 2D b-scan flow images, and high definition (HD) 5-line b-scan cubes; DL also detects ocular biomarkers indicative of AMD risk. Multimodal data were used as input to 2D-3D Convolutional Neural Networks (CNNs). Both for CNNs and experts, choroidal neovascularization and geographic atrophy were found to be important biomarkers for AMD. CNNs predict biomarkers with accuracy up to 90.2% (positive-predictive-value up to 75.8%). Just as experts rely on multimodal data to diagnose AMD, CNNs also performed best when trained on multiple inputs combined. Detection of AMD and its biomarkers from OCTA data via CNNs has tremendous potential to expedite screening of early and late-stage AMD patients.

Exploring Potential Schedule-Related and Gender Biases in Ophthalmology Residency Interview Scores.

Purpose Prior studies have revealed grading discrepancies in evaluation of personal statements and letters of recommendation based on candidate's race and gender. Fatigue and the end-of-day phenomenon can negatively impact task performance but have not been studied in the residency selection process. Our primary objective is to determine whether factors related to interview time and day as well as candidate's and interviewer's gender have a significant effect on residency interview scores. Methods Seven years of ophthalmology residency candidate evaluation scores from 2013 to 2019 were collected at a single academic institution, standardized by interviewer into relative percentiles (0-100 point grading scale), and grouped into the following categories for comparisons: different interview days (Day 1 vs. Day 2), morning versus afternoon (AM vs. PM), interview session (Day 1 AM/PM vs. Day 2 AM/PM), before and after breaks (morning break, lunch break, and afternoon break), residency candidate's gender, and interviewer's gender. Results Candidates in the morning sessions were found to have higher scores than afternoon sessions (52.75 vs. 49.28, p < 0.001). Interview scores in the early morning, late morning, and early afternoon were higher than late afternoon scores (54.47, 53.01, 52.15 vs. 46.74, p < 0.001). Across all interview years, there were no differences in scores received before and after morning breaks (51.71 vs. 52.83, p = 0.49), lunch breaks (53.01 vs. 52.15, p = 0.58), and afternoon breaks (50.35 vs. 48.30, p = 0.21). No differences were found in scores received by female versus male candidates (51.55 vs. 50.49, p = 0.21) or scores given by female versus male interviewers (51.31 vs. 50.84, p = 0.58). Conclusion Afternoon residency candidate interview scores, especially late afternoon, were significantly lower than morning scores, suggesting the need to further study the effects of interviewer's fatigue in the residency interview process. The interview day, presence of break times, candidate's gender, and interviewer's gender had no significant effects on interview score.

Ophthalmology Medical Student Directors, Associate Residency Program Directors, and Program Directors: A Benchmarking Study of Work and Life Metrics.

Introduction During a time of increased interest in physician well-being, this study benchmarks current work life, home life, and burnout scores for ophthalmology medical student directors (MSD), associate program directors (APD), and program directors (PD). Methods An anonymous cross-sectional survey was disseminated through the Association of University Professors of Ophthalmology (AUPO) listserve, with queries regarding leadership positions, work time allotment, extracurricular activities, family life, and burnout. Answers were analyzed descriptively through Fisher's exact test, Kruskal-Wallis test, and Poisson regression models. Results Nineteen percent of listed MSD, 15% of APD, and 29% of PD queried responded to the survey. MSD, APD, and PD are statistically similar in terms of work and home life, with the exception of time spent performing administrative tasks for the position. PD spend more time on administrative tasks, and are paid more. All groups score positively on burnout surveys. Conclusion This benchmarking survey demonstrates that MSD, APD, and PD are intensively involved in both their work and home lives, with a seemingly high correlation of sense of worth both personally and in their careers.

Efficacy of Preoperative Risk Stratification on Resident Phacoemulsification Surgeries.

Purpose: To evaluate efficacy of a novel risk stratification system in minimizing resident surgical complications and to evaluate whether the system could be used to safely introduce cataract surgery to earlier levels of training. Materials and Methods: This is a retrospective cross-sectional study on 530 non-consecutive cataract cases performed by residents at Columbia University. Risk scores, preoperative best corrected visual acuity (BCVA), intraoperative complications, postoperative day 1 (POD1), and month 1 (POM1) exam findings were tabulated. The relationship between risk scores and POD1 and POM1 BCVA was modeled using linear regression. The relationship between risk scores and complication rates was modeled using logistic regression. Logistic regression was used to model the rates of complications across different levels of training. Rates of complications were compared between diabetic versus non-diabetic patients using t-tests. Results: Risk scores did not have significant association with intraoperative complications. Risk scores were predictive of corneal edema (OR = 1.36, p = 0.0032) and having any POM1 complication (OR = 1.20, p = 0.034). Risk scores were predictive of POD1 (ß = 0.13, p < 0.0001) and POM1 (ß = 0.057, p = 0.00048) visual acuity. There was no significant association between level of training and rates of intraoperative (p = 0.9) or postoperative complications (p = 0.06). Rates of intraoperative complication trended higher among diabetic patients but was not statistically significant (p = 0.2). Conclusion: Higher risk scores were predictive of prolonged corneal edema but not risk of intraoperative complications. Our risk stratification system allowed us to safely introduce earlier phacoemulsification surgery.

Global Current Practice Patterns for the Management of Exogenous Endophthalmitis: A Survey by the American Society of Ophthalmic Trauma.

OBJECTIVE: To investigate the global practice patterns for the management of exogenous endophthalmitis. METHODS: This cross-sectional study was conducted to assess global practice patterns for the management of exogenous endophthalmitis. An online survey comprised of questions regarding the management of exogenous endophthalmitis was distributed to institutions who are members of International Globe and Adnexal Trauma Epidemiology Study Group (IGATES) or invited affiliates of the American Society of Ophthalmic Trauma and the Asia Pacific Ophthalmic Trauma Society. Responses were gathered from August 2020 to January 2021. RESULTS: Of 42 institutions, 36 responses were received (86% response rate), of which 33 (79%) were included in the analysis. Included centers were from Asia (36%), North America (36%), South America (12%), Africa (9%), Europe (3%), and Australia (3%). Oral antibiotics were administered in 19 (58%) institutions, with moxifloxacin as the preferred agent (n = 9, 27%). The preferred method for obtaining cultures was vitreous tap (n = 25, 76%). Most institutions (n = 26, 79%) routinely administered intravitreal vancomycin and ceftazidime, while intravitreal steroids were routinely administered at 11 centers (33%). Indications for performing vitrectomy included; decreased visual acuity (n = 14, 39%); all cases of exogenous endophthalmitis (n = 4, 12%); non-response to medical therapy (n = 4, 12%); or no view of the fundus (n = 4, 12%), indicating significant variation in surgical indications. More than half (n = 17, 52%) of responding institutions routinely admitted patients with exogenous endophthalmitis to the hospital. Institutions in the United States were less likely to administer oral antibiotics (27% vs. 73%, P = .024) and to admit patients (9% vs. 73%, P < .001) compared to other countries. CONCLUSIONS: This study highlights the global variations in the management of exogenous endophthalmitis, especially as it pertains to surgical indications. Further establishment of evidence-based guidelines may be beneficial to provide more uniform guidance to optimize outcomes.

Hemoglobinopathies: ocular manifestations in children and adolescents.

Hemoglobinopathies are genetic disorders that lead to abnormal structure of the hemoglobin molecule. Sickle cell disease, the most common inherited blood disorder, is characterized by defective oxygen transport. Almost every part of the eye can be affected by sickle cell disease; however, proliferative sickle cell retinopathy is the primary cause of vision loss, either from vitreous hemorrhage or retinal detachment. Here we review the various manifestations of hemoglobinopathies on the eyes of children and adolescents, with a specific focus on sickle cell disease and its different phenotypes. Newer, more sensitive ophthalmological imaging modalities, including ultra-widefield fluorescein angiography, spectral-domain optical coherence tomography, and optical coherence tomography angiography, are available. These sensitive modalities allow for a more thorough examination of the retinal periphery where sickle cell retinopathy is often present. Utilization of such modalities will help with the early detection of the disease in children, which provide a better understanding of the pathogenesis of the disease and guide future screening and treatment regimens.