Before revision: CEV was officially registered in 1997, and currently operates from the London School of Hygiene & Tropical Medicine and is funded by the National Institute for Health and Care Research (NIHR) .
After revision: CEV was officially registered in 1997, and currently operates from the London School of Hygiene & Tropical Medicine and is funded by the HSC Research and Development (RD) Division of the Public Health Agency in Northern Ireland and National Eye Institute .