Research into the many causes of blindness could prevent thousands of people losing their sight, but there is a worrying shortage of funding and researchers.
The prospect of losing your sight is terrible, but it is one faced by hundreds of people throught Britain each year. And anyone can be affected.
Many causes of blindness are preventable and sometimes treatable, and research carried out by Professor John Forrester of Aberdeen University's Institute of Medical Sciences has already revealed treatments for some ailments.
But much work still needs to be be done.
Professor John V Forrester
Emeritus Professor, University of Aberdeen