Affiliation: | 1. Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India;2. Department of Physiology, King George''s Medical University, Chowk, Lucknow, India;3. Department of Ophthalmology, King George''s Medical University, Chowk, Lucknow, India;4. Prakash Netra Kendra Gomti Nagar, Lucknow, India |