Diabetes And Glaucoma Mr. Michael To ask the Secretary of State for Health how many people he estimates were suffering from diabetes and glaucoma in (a) England, (b) each county in England during 1988–89 and 1989–90, respectively. Mr. Dorrell Precise information is not collected centrally. However, it has been estimated that there are about 1 million diabetics in the United Kingdom of whom about 200,000 inject insulin. The International Glaucoma Association estimates that glaucoma of some type is found in about 2 per cent. of the population over age 40.