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Mediation of vertical vergence
The authors hypothesised that if vertical vergence were mediated by vertical rectus muscles, then the eye that moves during a vertical fusion task would produce larger vertical vergence when abducted versus adducted. Similarly, if mediated by the oblique muscles then...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...Non-organic visual loss
Patients can present to eye departments with various signs and symptoms (mostly symptoms) with no obvious organic cause. These patients can be labelled with any of a wide range of diagnoses such as functional visual loss, functional overlay, psychosomatic reaction...Quiz Dec/Jan 2020
History A 69-year-old female patient was referred to the uveitis clinic from her local district general hospital with a left posterior uveitis which had been unresponsive to high dose steroids. She had no other previous ophthalmic history nor significant systems...
Vision measurements vs. self-rating
The aim of this study was to evaluate the association between self-rated vision status and tests of visual acuity, contrast sensitivity, stereoacuity, bilateral visual field and self-reported visual function in specific domains of near and far vision. The goal was...The results of the last survey Oct 2019
Another fascinating response which once more highlights the massive variation in practice. I completely acknowledge that ophthalmology is an art as well as a science and therefore there will be variances in practice and there will not be one ‘right’...
Unique case of steroid-induced intraocular pressure spike causing NAION
The literature describes previous cases of nonarteritic anterior ischaemic optic neuropathy (NAION) following rapid rises in intraocular pressure (IOP) leading to reduced optic nerve head perfusion and disruption. This is commonly following ophthalmic procedures, acute glaucoma or steroid eye drops....
Contrast sensitivity in myopic eyes
A classification system has been proposed for myopic maculopathy: grade 0 (no myopic retinal lesions), grade 1 (tessellated fundus), grade 2 (diffuse chorioretinal atrophy (CRA)), grade 3 (patchy CRA), and grade 4 (macular atrophy). Tessellated fundus is defined as the...
PDI check Nintendo screening results
‘PDI check’ is a vision assessment game developed for the autostereoscopic upper screen on the Nintendo 3DS XL game console. Version 0.2.5 emphasises quick assessment of monocular acuity, stereoacuity and red-green colour deficiency. The purpose of this study was to...Collaborating across the Caribbean to tackle diabetic retinopathy
The VISION 2020 LINKS Programme has been running since 2004, with a focus on improving the quality and quantity of eye care training in low-income countries [1]. In 2014, the Diabetic Retinopathy Network (DR-NET) was established [2]. This is a...
Prevalence and incidence of uveitis
Uveitis encompasses a group of diseases characterised by the inflammation of fovea uvea which are potentially vision threatening. However, the frequency of this condition is unclear. This systematic review and meta-analysis aimed to provide estimates of the frequency of uveitis...
