- Correspondence to Dr Liying Low, Academic Unit of Ophthalmology, University of Birmingham, Birmingham, B15 2TT, United Kingdom;
- Received 4 November 2016
- Revised 8 February 2017
- Accepted 10 February 2017
- Published in print 1 October 2017.
- Published online 26 September 2017.
- Published first 8 March 2017.
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.