1. Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
2. Department of Ophthalmology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
3. Dr. Nasser Al-Rashid Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia