Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie

INTRODUCTION: This review and meta-analysis compare visual outcomes and complication risk based on the timing of pars plana vitrectomy (PPV) following cataract surgery with retained lens fragments. METHODS: MEDLINE (Ovid), EMBASE, and Cochrane Library were searched between 2000 to February 2022 for studies comparing visual outcomes and complications based on time to PPV. Discrete outcomes were analyzed using a random-effects meta-analysis model on Review Manager (RevMan 5...

The field of ophthalmology is rapidly advancing, with technological innovations enhancing the diagnosis and management of eye diseases. Tele-ophthalmology, or the use of telemedicine for ophthalmology, has emerged as a promising solution to improve access to eye care services, particularly for patients in remote or underserved areas. Despite its potential benefits, tele-ophthalmology faces significant challenges, including the need for high volumes of medical images to be analyzed and interpreted by trained clinicians...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

OBJECTIVE: To assess the effect of prompt engineering on the accuracy, comprehensiveness, readability, and empathy of large language model (LLM)-generated responses to patient questions regarding retinal disease. DESIGN: Prospective qualitative study. PARTICIPANTS: Retina specialists, ChatGPT3.5, and GPT4. METHODS: Twenty common patient questions regarding 5 retinal conditions were inputted to ChatGPT3.5 and GPT4 as a stand-alone question or preceded by an optimized prompt (prompt A) or preceded by prompt A with specified limits to length and grade reading level (prompt B)...

OBJECTIVE: To quantify post-cataract surgery health care utilization caused by dry eye symptoms (DES) and identify preoperative risk factors and mediators of postoperative DES. SETTING: An outpatient surgical centre in Toronto, Canada. DESIGN: Retrospective cohort study. PARTICIPANTS: Included patients had cataract surgery between April 2019 and January 2020, completed a preoperative Dry Eye Questionnaire 5 (DEQ5), and were over age 18...

OBJECTIVE: To examine the association between quantitative vascular parameters extracted from intravenous fluorescein angiography (IVFA) and baseline clinical characteristics of patients with retinal vein occlusion (RVO). METHODS: Our prospective single-centre study in Toronto, Canada, recruited patients with a diagnosis of macular edema secondary to RVO presenting with a central macular thickness (CMT) ≥310 μm from 2017 to 2023. IVFA images were captured using an ultra-widefield scanning laser ophthalmoscope and processed using the artificial intelligence-based RETICAD system to extract quantitative measurements of blood flow, perfusion, and blood-retinal barrier (BRB) permeability...

PURPOSE: To investigate the localization, distribution, and type of central microaneurysms (MAs) and their relationship with retinal vascular alterations in patients with retinal vein occlusion (RVO). METHODS: In this cross-sectional study, ultra-widefield color fundus photography (UWF-CF), standard and single-capture 65° widefield (WF) optical coherence tomography angiography (OCTA) were performed in consecutive patients with RVO treated at the Department of Ophthalmology and Optometry, Medical University of Vienna...

PURPOSE: To develop an automated, new framework based on machine learning to diagnose malignant eyelid skin tumors. METHODS: This study used eyelid lesion images from Sheba Medical Center, a large tertiary center in Israel. Before model training, we pretrained our models on the International Skin Imaging Collaboration (ISIC) 2019 dataset consisting of 25,332 images. The proprietary eyelid data set was then used for fine-tuning. The data set contained multiple images per patient, aiming to classify malignant lesions in comparison to benign counterparts...

OBJECTIVE: To compare the efficiency of venturi and peristaltic pump phacoemulsification systems in patients undergoing routine laser cataract surgery. DESIGN: Single center, nonrandomized clinical study. PARTICIPANTS: The study compared consecutive eyes with moderate nuclear sclerosis undergoing routine laser cataract surgery at the Outpatient Eye Center, Mercy Health System, Springfield, MO, USA. METHODS: Each surgery used the same femtosecond laser settings...

BACKGROUND: Whether optical computed tomography (OCT) and magnetic resonance imaging (MRI) findings are associated with final visual acuity in children with myelin oligodendrocyte glycoprotein antibody disease (MOGAD) optic neuritis is unclear. METHODS: We retrospectively reviewed the charts of pediatric patients with MOGAD optic neuritis seen at St. Louis Children's Hospital/Barnes Jewish Hospital since 2016. RESULTS: In the 12 patients in this study, presenting visual acuity was worse in the optic neuritis-affected eyes but significantly improved from presentation to follow-up, such that, at last follow-up, there was no longer a statistical difference between the affected and unaffected eyes...

OBJECTIVE: To report the surgical outcomes of a modified trabeculectomy technique involving implanting the Tenon's layer under the scleral flap. DESIGN: Prospective, interventional case series. PARTICIPANTS: 51 eyes with medically uncontrolled glaucoma were enrolled for this study. A new trabeculectomy technique, the Tenon's filtration technique for trabeculectomy (TFT-LEC) was used in 26 eyes, while a conventional procedure, normal trabeculectomy (N-LEC), was used for 25 eyes...

OBJECTIVE: To obtain prescription eyewear in Ontario, eye exams must be performed by optometrists or ophthalmologists (eye care providers [ECPs]). In 2004, government-insured routine eye exams were delisted for Ontarians aged 20-64 leaving eye exam coverage only for those aged ≤19 and 65+. We assessed whether having eyewear insurance impacts Ontarians' utilization of ECPs. DESIGN: Cross-sectional survey. PARTICIPANTS: Ontarians aged 12+ without diabetes responding to the Canadian Community Health Survey in 2003, 2005, and 2013/2014...

PURPOSE: Over 6 million people in the United States participate in martial arts, and the focus on striking the face poses a significant risk of injury to the eye. The objective of this study is to characterize the nature and incidence of martial arts-related eye injuries in the United States. METHODS: A retrospective analysis of the National Electronic Injury Surveillance System (NEISS) database served as the basis of the study. The NEISS database was queried for eye injuries related to martial arts from 2012 to 2021...

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OBJECTIVE: Outline geographic disparities in access to language-and gender-concordant ophthalmologic care in Canada. DESIGN: Cross-sectional. PARTICIPANTS: Practicing ophthalmologists in Canada (September 2023). METHODS: Data on ophthalmologists, including demographics, languages spoken, and practice locations, were collected from provincial regulatory body websites. Population data were extracted from the 2021 Statistics Canada Census...

OBJECTIVE: To assess the feasibility of using artificial intelligence (AI) to improve readability of online cataract surgery patient education materials (PEMs) in English and Spanish. PARTICIPANTS: Websites with information dedicated to educating patients about cataract surgery. DESIGN: Comparative cross-sectional study. METHODS: The first 50 patient-oriented websites containing PEMs related to cataract surgery were identified through online search...

OBJECTIVE: To evaluate and improve the quality of periocular biopsy follow-up by determining the absolute compliance rate, examining delays between stages, identifying obstacles to high-quality follow-up, and offering recommendations for improvement. METHODS: Phase 1: A retrospective, observational, and descriptive study was conducted using chart reviews of adult patients who underwent periocular biopsies at the Centre Hospitalier Universitaire de Sherbrooke (CHUS) from January 2019 to October 2022...

OBJECTIVE: To develop surveillance programs for uveal melanoma patients, tailored to metastatic risk. METHODS: Surveillance schedules were developed using the number needed to scan (NNS) concept, based on weighted average metastasis-free survival (MFS) rates from systematic review data of 18 prognostic groups (Disomy 3 (D3), Monosomy 3 (M3), EIF1AX-mutation, SF3B1-mutation, BAP1-mutation, high or low nBAP-1 immunohistochemistry, gene expression profiling classes (1;1A;1B;1PRAME- ;1PRAME+ ;2;2PRAME- ;2PRAME+ ), and V stages I-III)...

No abstract text is available yet for this article.