Tennent Institute of Ophthalmology, Gartnavel General Hospital, Glasgow, UK.
Ophthalmology Department, University of Rwanda, Rwanda.
Department of Oncology and Haematology, Hull University Teaching Hospital NHS Trust, UK.
Sensory Functions, Disability and Rehabilitation Unit, World Health Organization, Geneva, Switzerland.
Manchester University Foundation Trust, UK.
Ninewells Hospital and Medical School, Dundee, UK.
King’s College Hospital, NHS Foundation Trust, London, UK.
University of Cambridge, UK.
Northampton General Hospital, UK.
Royal Liverpool University Hospital, Liverpool University Hospitals NHS Foundation Trust, UK.
Alder Hey NHS Foundation Trust, Liverpool, UK.
Glaucoma UK.