- Correspondence to: Nina Ashraff Manchester Royal Eye Hospital, Oxford Road, Manchester M13 9WH, UK;
- Accepted 12 May 2003
- Published in print 1 February 2004.
- Published online 21 January 2004.
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.