1. Fellowship and Residency Training Program, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
2. Glaucoma Division, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
3. Research Department, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
4. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia