[1] Lincoln Cty Hosp, Dept Ophthalmol, Greetwell Rd, Lincoln LN2 5QY, England
[2] Lincoln Cty Hosp, Dept Radiol, Lincoln, England
[3] Royal Hallamshire Hosp, Dept Histopathol, Natl Specialist Ophthalm Pathol Serv, E Floor, Sheffield, S Yorkshire, England
[4] Nottingham Univ Hosp NHS Trust, Nottingham Clin Genet Serv, Nottingham, England