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The invisible touch: a VISION 2020 LINK with Indonesia
Indonesia’s population, the world’s fourth largest, is spread across 6,000 inhabited islands. Whilst some areas (e.g. Kalimantan, Papua) are relatively sparsely populated, Java is the world’s most densely populated island, with twice the population of the UK in half the...IN FOCUS - The achievements and lasting effects of VISION 2020
Blindness is a major public health problem globally. The first estimate of global blindness by the World Health Organization (WHO) in 1972 provided a figure of 10 to 15 million, which was considered an underestimate [1]. In 1999, an extraordinary...
Unexplained vision loss following exposure to combat
Non-organic vision loss (NOVL) is defined as a decrease in visual acuity or visual field without an identifiable organic cause. NOVL can be particularly challenging and time-consuming to diagnose, especially where the vision loss is superimposed on an element of...VISION 2020 LINKS Programme: the Madagascar-Leeds LINK
Madagascar is a fascinating and culturally rich island which has an ‘exotic’ status in most people’s eyes. Yet it is among the poorest countries in the world. According to the World Bank, 92% of the population live on less than...Bionic eyes: deciphering the neural circuitry of vision restoration
As the boundaries between technology and biology blur, retinal prosthetics, often dubbed ‘bionic eyes’, present a ground-breaking paradigm shift in addressing blindness. This article delves into the captivating scientific intricacies of these neural interfaces, exploring their mechanisms of action, current...Time is vision in central retinal artery occlusion
Central retinal artery occlusion (CRAO) is a rare but devastating vascular episode that can have severe impact on vision. Treatment is very time-limited and needs to be initiated very quickly to salvage any vision. The majority of patients present to...
Cost-effectiveness framework discussion for vision screening
The authors present a discussion paper on hypothetical, but representative, examples of post-referral costs that may result from different screening options up to the point of discharge from specific services. Data was taken from a recent (2019) systematic review (with...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...Vision Buddy: A sight enhancement wearable to enhance TV and computer viewing
This review of the Vision Buddy system continues our recent series on wearable assistive technology. The main component of the Vision Buddy system is a VR-type headset, designed to assist users with a range of tasks primarily within the home...
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...
