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The rarebit vision test for macular conditions

Rarebit testing is used to measure low degrees of neuro-visual damage and is available for free on the internet. It consists of a fixed bright light dot presented on a black background. During testing it is presented briefly at different...

VA and stereo changes with increasing Bangerter filters

This study investigated the effect of monocular blur induced by Bangerter filters (BF) on both monocular and binocular visual acuity (VA) and stereoacuity in normal visual systems. Subjects included 24 healthy student volunteers aged 20.33 ±1.79 years; 22 female. One...

Smartphone use impact on accommodation and convergence measures

This study aimed to explore the relationship between smartphone use impact on the mean triad and potential pre-existent risk factors for acute acquired comitant esotropia (AACE). A prospective study of 18 university staff and students aged 24 years (SD 7.7)...

Understanding optic nerve head pericytes and glaucoma

The authors provide a comprehensive review of the current understanding of pericytes in the optic nerve head (ONH). Key points include: (1) Pericytes are contractile mural cells that play crucial roles in regulating blood flow, maintaining the blood-brain / blood-retinal...

Google Maps - some supremely useful features

This article covers some less well known, yet very useful, features of Google Maps. Estimate your journey time by the day and time you’ll be travelling It’s easy to type a destination in and get an idea about how long...

Roles, titles, and the healthcare scientist

Within the typical eye unit, there are lots of ‘Ophth’ job titles. We as ophthalmic professionals mostly know what these titles mean, but do our patients and junior staff? During my career I have had many and varied job titles,...

Ultrasound biomicroscopy (part 2): primary angle closure

Patients with primary angle closure or primary angle closure glaucoma [PAC(G)] comprise a significant subgroup affecting around 10% of glaucoma patients amongst Caucasians. Assessment of the patient with angle closure, or narrow angles, requires gonioscopy. However, whilst identifying the presence...

Retinal prosthetics: science fiction or a vision for the future?

“Is it a fact – or have I dreamt it – that, by means of electricity, the world of matter has become a great nerve, vibrating thousands of miles in a breathless point of time?” – Nathaniel Hawthorne, The House...

Mast cells in Graves’ ophthalmopathy

Graves’ ophthalmopathy (GO) is a potentially sight-threatening ocular disease, occurring in patients with hyperthyroidism due to Graves’ disease. Also known as thyroid-associated ophthalmopathy, GO is characterised by orbital infiltration by immune cells including macrophages, T cells and plasma cells, which...

Addressing diabetes-related complications in Tanzania and Eswatini: A comprehensive approach to eye and foot screening

Diabetes is rising globally, particularly in low- to middle-income countries (LMICs), where healthcare systems are under resourced [1,2]. Among its complications, diabetic retinopathy (DR) and diabetic foot disease are preventable yet frequently overlooked [3-6]. These problems often develop together due...

Handover of power

Election time comes every five years in the United Kingdom. It is usually a time of excitement and trepidation as people wonder what will change, for whom and over how long, depending on which party might win power. Usually it...

The last three patients: general medicine (Patient Two)

For the second reflection in this series (see Patient One here), Professor Jonathan Rees recounts his experiences of the last patient he saw as a medical registrar, telling the tragic story of a young man’s death and the risks that...