1 King Khaled Eye Specialist Hospital, Riyadh 11462, Saudi Arabia.
2 King Khaled Eye Specialist Hospital, Riyadh 11462, Saudi Arabia; Department of Ophthalmology, Rio Hortega University Hospital, Valladolid 47012, Spain.
3 Diagnostic Imaging Department, King Khaled Eye Specialist Hospital, Riyadh 11462, Saudi Arabia; Department of Diagnostic Radiology, Mansoura Faculty of Medicine, Cairo 35516, Egypt.
4 Departments of Ophthalmology & Pathology, King Saud University Medical City, Riyadh 12372, Saudi Arabia.
5 King Khaled Eye Specialist Hospital, Riyadh 11462, Saudi Arabia; Department of Ophthalmology, Faculdade de Medicina de Botucatu - UNESP, São Paulo 18618-970, Brasil.