David Crabb is professor of statistics and vision research in the School of Health Science at City, University of London. He gained degrees in mathematics and statistics at Oxford and Sheffield before completing a PhD in Visual Science in 1996. Following a post-doctoral position at University College London and a lectureship in Nottingham, he took up his position at City in 2005. Professor Crabb is a fellow of the Royal Statistical Society, honorary consultant in Visual Science at Moorfields Eye Hospital and the director of the Applied Vision Research Centre at City, University of London. Professor Crabb’s research laboratory contains a lively mixture of vision scientists, optometrists, psychologists, mathematicians and computer scientists. This research laboratory focuses on measurement in vision, especially visual fields, imaging, and eye movements. The laboratory has attracted an international reputation, especially in glaucoma research. One of the main themes of Professor Crabb’s work is relating the different stages in the process of chronic eye disease to patient’s visual disability and everyday life. Other themes include ocular imaging and image processing, the design of new tests for visual disorders and using ‘big data’ extracted from eye clinics to assess health service delivery of age-related eye disease.