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Randomisation, confounding & observational methods in ophthalmic epidemiology

Randomisation and confounding Understanding the relationship between an exposure and an outcome of interest is the central challenge in ophthalmic epidemiology. The exposure may be aetiological, taking the form of a putative risk biological factor, or therapeutic, in the form...

In conversation with Prof Carrie MacEwen, Chair of The Way Forward and President, The Royal College of Ophthalmologists

Prof Carrie MacEwen. Scope for optimising capacity within the Hospital Eye Service (HES)? The demand for ophthalmic care continues to grow with no increase in capacity. In order to be able to continue to deliver adequate care ophthalmologists have devised...

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...

Adaptive optics imaging: resolving single cells in the living eye

The human retina is unique in the central nervous system (CNS) in that it can be directly visualised non-invasively. Technological advances of several imaging modalities, including optical coherence tomography (OCT), multichannel scanning laser ophthalmoscopy (SLO) and fundus photography, have afforded...

Rb-NET: a network to save life and preserve vision in children in Africa

Responding to need is a key element underpinning the VISION 2020 LINKS Programme [1]. It is embedded in the process through which LINKS are established, with institutions in low- and middle-income countries (LMICs) first defining their priority areas of training...

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...

In conversation with Professor Usha Chakravarthy (2018)

Professor Chakravarthy popped by the Eye News stand at the 2018 Royal College of Ophthalmologists Annual Congress after her excellent Bowman Lecture. She gave us a summary of her presentation, which looked at how our understanding of AMD has changed...

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...