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A comparison of colour vision tests in the presence of contrast sensitivity loss
This study analyses the effect of contrast sensitivity (CS) loss on colour vision (CV) testing, using a variety of colour vision tests. The authors used a computer model for CS loss to determine its effect on CV testing scores for...
Screening to detect high hyperopia
The purpose of this study was to compare the effectiveness of the plus lens test versus the Spot vision screener. This was a prospective study and 109 children aged two to 12 years (62% female) underwent both assessments followed by...
Effect of voriconazole of vision of healthy volunteers
Voriconazole is a broad spectrum, triazole antifungal agent used for systemic fungal infections. It has a favourable safety profile and is available in both intravenous and oral forms. The commonest adverse drug reactions with voriconazole are changes in visual perception,...
Use of technology in low vision rehabilitation
This article is a review of the accessibility features available on tablets and smartphones for the visually impaired. It explains exactly what the accessibility features are, how to access them and how to use them as well as some useful...Emerging therapies for geographic atrophy: complement inhibitors show potential to slow progression and preserve RPE and photoreceptor integrity
Geographic atrophy (GA) is an advanced form of age-related macular degeneration (AMD) characterised by progressive, irreversible loss of the retinal pigment epithelium (RPE) and photoreceptors and is estimated to account for approximately 10% of AMD-related blindness [1-4]. The Age-Related Eye...Developing a unified approach to low-vision care
RNIB’s Preeti Singla and Louise Gow introduce the Adult Low Vision Service Quality Framework. For individuals living with visual impairment, access to high-quality low vision services can be life changing. Yet, across the UK, these services remain fragmented, with significant...Quiz Aug/Sep 2025
History A 78-year-old female presented with bilateral, painless, progressive blurring of vision over five years, photophobia and increasing glare. Her past medical history included a known diagnosis of monoclonal gammopathy of undetermined significance (MGUS). On examination, vision in the left...Katie Piper and a host of stars mark World Sight Day 2025 with International Eye Care Charity Orbis
To celebrate World Sight Day, Orbis, the international eyecare charity, hosted an intimate breakfast event this morning at the historic St Pancras London Hotel, situated in King’s Cross. The gathering brought together high-profile people from the worlds of entertainment, fashion,...Don’t ignore the black lesion! It might be mucormycosis
Keeping mucormycosis infection in the foreground of your differential diagnosis, especially in those more vulnerable patients, will help save their lives if recognised and managed appropriately. Mucormycosis is a fulminant infection caused by the fungi of the family Mucoraceae. It...An anterior segment lump: a diagnostic and treatment challenge
Case presentation A 50-year-old female presented to eye casualty with a lump on the left medial lower eyelid with associated redness and occasional bleeding. The lump was present for a few months with recent enlargement (Figure 1). Her past medical...The Global Vision Database
The overall goal of the Global Vision Database (GVD) [1] is to develop and deploy new and improved evidence on the prevalence of blindness and vision impairment (VI) globally. It is a repository which allows us to assess the causes...
