Arnold Wilkins is Professor Emeritus at the University of Essex. He obtained a doctorate from Sussex University for work on human memory and then spent two years at the Montreal Neurological Institute (1972-1974) where he became interested in epilepsy. He returned to England to work as a research scientist at the Medical Research Council Applied Psychology Unit, Cambridge (1974-1997) and joined the University of Essex in December 1997. His studies demonstrated that fluorescent lighting is detrimental to health, and led to the invention of a system for ophthalmic tinting, now in optometric practice. He has a wide range of research interests including the neuropsychology of vision, reading and colour, photosensitive epilepsy, migraine, typography, and lighting.