1. Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
2. Department of Pediatrics; King Khalid University Hospital and College of Medicine, King Saud University; Riyadh Saudi Arabia
3. Pediatric Ophthalmology; King Khaled Eye Specialist Hospital; Riyadh Saudi Arabia
4. Department of Anatomy and Cell Biology; College of Medicine, Alfaisal University; Riyadh Saudi Arabia