1. From the Departments of Ophthalmology and
2. the Department of Ophthalmology, Moorfields Eye Hospital, London, United Kingdom;
3. Medical Microbiology, Royal Liverpool University Hospital, Liverpool, United Kingdom;
4. the Department of Ophthalmology, Bristol Eye Hospital, Bristol, United Kingdom;
5. the Department of Microbiology, University of Bristol, Bristol, United Kingdom;
6. the Department of Ophthalmology, University of Newcastle-upon-Tyne, Newcastle-upon-Tyne, United Kingdom;
7. the Department of Ophthalmology, Manchester Royal Infirmary, Manchester, United Kingdom; and
8. the Department of Medical Microbiology, University of Liverpool, Liverpool, United Kingdom.