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Myopia-related strabismus – heavy eye syndrome

Introduction Myopia can be associated with any type of strabismus, but high myopia has increased frequency of esotropia and vertical heterotropia. The incidence and severity of the strabismus increases with the degree of myopia and age of the patient. Classification...

Quiz Feb/Mar 2024

History A 21-month-old boy presented to his local ophthalmology department with a left proptotic eye from a growing cystic lesion known to be present from birth. Notes taken on presentation were: Known left microphthalmia with chorio-retinal coloboma, contralateral eye was...

ABDO College achieves carbon neutrality for the second year running

ABDO College has successfully achieved carbon neutrality for 2022, alongside a significant reduction in emissions in a number of areas.

Which factors predispose to pingecula development in a rural Chinese population?

The authors report a cross-sectional study which aimed to determine the prevalence and risk factors for developing pingecula in a rural Chinese population near Shanghai. Nine hundred and fifty-nine persons were recruited from a single village and asked to complete...

The global burden of age-related macular degeneration

Age-related macular degeneration (AMD) is the third leading cause of blindness (behind cataract and refractive error). The authors present the results of the Global Burden of Disease (GBD) 2015 study, which included 195 countries. The disability-adjusted life years (DALY) due...

Effect of caffeine and low intensity endurance exercise on intraocular pressure

This placebo controlled, double blind, balanced crossover study reports in healthy individuals that 30 minutes of cycling caused a maximum of 2.7mmHg lowering of IOP. A caffeine dose of 4mg/kg 30 minutes prior to cycling negated this effect. The conclusion...

The effect of caffeine on pupil size and accommodation

Twenty-two young and healthy participants were recruited in this study. The authors showed that pupil size increased as a result of caffeine consumption. A more stable (lower variability of accommodation) accommodative response (AR) was induced by caffeine intake, whereas the...

Caffeine concentration in the vitreous after drinking coffee

Caffeine is known to penetrate many bodily fluids, including the vitreous. In this prospective study, investigators measured caffeine levels in vitreous samples from patients undergoing vitrectomy and epiretinal membrane peel. Patients were divided into habitual and non-habitual coffee drinkers. One...

Predicting visual prognosis of patients with methanol poisoning

Symptoms of methanol poisoning often occur 12–24 hours after oral consumption, and visual symptoms are seen in approximately 50% of cases. This study aims to investigate the role of optic nerve diffusion status on cranio-orbital magnetic resonance imaging (MRI) in...

Long-term esotropia and exotropia alignment

The authors review surgical outcomes for 317 children having surgery for esotropia (n=235) or exotropia (n=82) for comparative analysis using survival curves. Esotropia surgery was undertaken at a mean of 42 months; exotropia surgery at a mean of 60 months...

Consecutive exotropia features

This study sought to detect abnormal scleral attachment with comparison of histopathological findings in consecutive exotropia. The study also considered the success rate of medial rectus resection and advancement, dose response and evaluate potential preoperative factors that might indicate presence...

Surgical outcomes of primary recess/resection vs readvancement/recession surgery for exotropia

This study compared the surgical yield of primary lateral rectus and medial rectus recession/resection (RR) surgery for basic exotropia, convergence insufficiency type exotropia (CIXT) and divergence excess (DXS) vs. patients undergoing medial rectus readvancement (MRR) +/- lateral rectus recession for...