Unilateral posterior scleral defect was not associated with altered ocular biomechanics.

Technologies that describe the biomechanics of the eye are of emerging importance in glaucoma and keratoconus. A defect in the wall of the eye would be expected to affect biomechanics, resulting in the dispersion of mechanical energy and more viscous rather than elastic behaviour. Here, a mildly myopic man in his 50s was noted to have a deep conduit beside the right optic disc which appeared to pass posteriorly to the optic nerve sheath or orbit.

Synapses and dendritic spines are eliminated in the primary visual cortex of mice subjected to chronic intraocular pressure elevation.

Synaptic plasticity is essential for maintaining neuronal function in the central nervous system and serves as a critical indicator of the effects of neurodegenerative disease. Glaucoma directly impairs retinal ganglion cells and their axons, leading to axonal transport dysfuntion, subsequently causing secondary damage to anterior or posterior ends of the visual system. Accordingly, recent evidence indicates that glaucoma is a degenerative disease of the central nervous system that causes damage throughout the visual pathway.

Earliest location of glaucomatous retinal nerve fibre layer damage is determined by intact baseline RNFL thickness profile.

Background/aims: To identify whether an intact retinal nerve fibre layer (RNFL) thickness profile could determine the location of the earliest RNFL defect in glaucoma.

Methods: Retrospective longitudinal cohort study of patients with initial unilateral glaucoma who eventually developed new glaucoma in the fellow eye. Guided progression analysis (GPA) of serial optical coherence tomography (OCT) examinations was used to identify the angular locations of the earliest RNFL defect, peak and temporal edge of the baseline RNFL profile and major vessels based on the peripapillary OCT scan circle.

Choroidal effusion after initiation of topical dorzolamide treatment.

We report a case of unilateral serous choroidal effusion in a patient without prior glaucoma surgeries that developed within 1 week of starting topical dorzolamide. A Caucasian female in her 60s with a history of severe primary open-angle glaucoma in the left eye without prior glaucoma surgeries developed irritation and subsequently blurry vision in her left eye within 1 week of starting topical dorzolamide 2% in the left eye only. Funduscopic exam and B-scan ultrasound demonstrated a serous choroidal effusion in the nasal and temporal periphery.

Asymmetric Glaucoma and Corresponding Hearing Impairment.

: This study aims to explore the potential relationship between unilateral or asymmetric glaucoma and ipsilateral hearing impairment. : In this retrospective study, visual and hearing functions were assessed in patients with unilateral or asymmetric glaucoma. Correlations between retinal nerve fiber layer (RNFL) thickness, visual field mean deviation (MD) values, and pure tone audiometry (PTA) measurements across various frequencies were analyzed to explore potential associations between visual and ipsilateral hearing functions.

Clinical profile and etiological spectrum of patients presenting with corneal hydrops over a 12-year period.

Purpose: To describe the demographics, clinical characteristics, and management of corneal hydrops in patients presenting to a multi-tier ophthalmology hospital network in India.

Design: Cross-sectional hospital-based study.

Methods: Of the total of 3,140,941 new patients presenting between October 2010 and March 2022, patients with a clinical diagnosis of corneal hydrops in at least one eye were included in the study.

Long-term outcome and determinants of primary pediatric cataract surgery.

Purpose: This study aimed to evaluate the long-term outcomes of primary pediatric cataract surgery and to identify determinants of success and recommendations to improve the care of patients with pediatric cataracts.

Methods: A cohort, retrospective study of cases who were operated as primary pediatric cataract surgery at King Khaled Eye Specialist Hospital. Patients who are 4 years old or younger and underwent primary cataract surgery with at least 3-year follow-up were enrolled in this study.

Quality of Life and Primary Open-Angle Glaucoma in the Ocular Hypertension Treatment Study.

Importance: If preperimetric glaucoma reduces patient-reported vision-related quality of life (VRQoL), clinicians might consider earlier and more aggressive treatment of some patients with ocular hypertension and early glaucoma.

Objective: To determine the impact of preperimetric glaucoma and early glaucomatous visual field (VF) loss on participants' VRQoL compared with participants who did not develop glaucoma in the Ocular Hypertension Treatment Study (OHTS).

Design, Setting, And Participants: This cross-sectional study used data from participants enrolled in the OHTS from 1994 to 1996 who completed 20-year examination follow-up and VRQoL surveys from January 7, 2016, to November 19, 2019.

Steroids and Cross-Linking for Ulcer Treatment Trial II: Baseline Characteristics.

Purpose: The Steroids and Cross-linking for Ulcer Treatment Trial is an NIH-funded international, randomized, double-masked, sham and placebo-controlled clinical trial to determine the benefit of adjunctive corneal cross-linking with riboflavin and/or topical difluprednate in addition to topical antibiotic drops for treatment of smear-positive bacterial ulcers. The purpose of this study was to explore the baseline characteristics for infection of patients enrolled, and the ocular comorbidities of patients screened for inclusion.

Methods: Of the 2005 patients with smear-positive bacterial ulcers screened, 280 patients were enrolled.

Corneal and anterior segment parameters in patients with clinically unilateral pseudoexfoliation syndrome.

Background: Pseudoexfoliation syndrome (PES) is an age-related systemic condition that predominantly affects ocular structures and is characterized by the deposition of material on the lens, ciliary body, zonules, corneal endothelium, iris, and pupillary margin. We compared the corneal endothelial morphology, anterior segment parameters, corneal densitometry, and corneal topographic characteristics between the clinically affected and apparently normal fellow eyes of patients with clinically unilateral PES.

Methods: This was a comparative, cross-sectional study of 34 patients with clinically unilateral PES.

Lack of ceramide synthase 5 protects retinal ganglion cells from ocular hypertensive injury.

Ceramides with varying acyl-chain lengths can have unique biological actions and hence, cellular responses to ceramides may depend not on their overall concentration but on that of individual ceramide species. The purpose of this study was to determine individual ceramide species impacting retinal ganglion cell (RGC) loss under the ocular hypertensive condition. Induced pluripotent stem cell (iPSC)-derived RGCs and primary cultures of human astrocytes were used to determine the effect of individual ceramide species on both RGC viability and astrocyte secretion of inflammatory cytokines in vitro.