1. Department of Ophthalmology, College of Medicine, King Saud University, PO Box 18097, Riyadh, Postal code 11415, Saudi Arabia
2. Department of Pathology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
3. Department of Pathology and Laboratory Medicine, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
4. Department of Ophthalmology, Al-Imam Muhammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
5. Department of Diagnostic Radiology, Mansoura Faculty Of Medicine, Egypt