- Correspondence to Professor Ahmed M Abu El-Asrar, Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 11411, Saudi Arabia;
- Received December 11, 2018
- Revised January 10, 2019
- Accepted January 19, 2019
- First published February 23, 2019.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.