§ Ms PerhamTo ask the Secretary of State for Health what estimate his Department has made of the number of people in the UK suffering from(a) retinitis pigmentosa and (b) Usher syndrome. [111994]
§ Mr. DenhamThe information requested is not collected centrally. However, the British Retinitis Pigmentosa Society estimates that there are 25,000 people with the condition in the United Kingdom; figures for the incidence of Usher syndrome in Britain are incomplete.