- Correspondence to: Helen Haggerty Orthoptic Department, Claremont Wing, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK;
- Accepted June 18, 2003
- First published January 21, 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.