- Correspondence to Hon Shing Ong, The Western Eye Hospital, Imperial College Healthcare NHS Trust, 153–173 Marylebone Road, London NW1 5QH, UK;
- Received May 20, 2015
- Revised August 13, 2015
- Accepted August 14, 2015
- First published September 9, 2015.
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.