1. Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 11411, Saudi Arabia
2. Glaucoma Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh 11411, Saudi Arabia
3. King Saud University Medical City, King Saud University, Riyadh 11411, Saudi Arabia
4. Department of Blood and Cancer Research, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University of Health Sciences, Ministry of National Guard Health Affairs, Riyadh 11426, Saudi Arabia
5. Department of Ophthalmology, Imam Abdulrahman Alfaisal Hospital, Riyadh 14723, Saudi Arabia
6. Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN 55347, USA