1Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EV, UK
2Section of Medical and Molecular Genetics, Department of Paediatrics and Child Health, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
3West Midlands Regional Genetics Service, Birmingham Women’s Hospital, Birmingham B15 2TG, UK
4Department of Ophthalmology, Birmingham Children’s Hospital, Birmingham B4 6NH, UK
5Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB, UK
Correspondence to: Professor D M Hunt Institute of Ophthalmology, University College London, 11–43 Bath Street, London EC1V 9EV, UK; [email protected]
We thank Professor B Wissinger for providing details of PCR primers for the screening of CNGB3. The work was supported by grants from the British Retinitis Pigmentosa Society and the Guide Dogs for the Blind Association. We are also grateful to the patients who kindly agreed to take part in this study.
S Johnson and M Michaelides contributed equally to the work and therefore should be considered equivalent authors
