1. From the Institute of Ophthalmology, University College London, United Kingdom; the
2. From the Institute of Ophthalmology, University College London, United Kingdom; the2Moorfields Eye Hospital, London, United Kingdom;3Pharmagene Laboratories Ltd., Royston, Hertfordshire, United Kingdom;
3. MRC Human Genetics Unit, Western General Hospital, Edinburgh, United Kingdom; the
4. Moorfields Eye Hospital, London, United Kingdom;
5. Moorfields Eye Hospital, London, United Kingdom;5Department of Human Anatomy and Genetics, University of Oxford, United Kingdom;6Birmingham Childrens Hospital NHS Trust, Diana Princess of Wales Children’s Hospital, Birmingham, United Kingdom; the
6. Department of Medical Sciences, University of Edinburgh, Edinburgh, United Kingdom.