1. Department of Health. Hospital episode statistics date 1993-94. Unpublished data provided by the Department of Health, London.
2. Desai P . The National Cataract Surgery Survey. II. Clinical outcomes. Eye 1993;7:489–94.
3. Leibowit HM, Krueger D, Maunder L, et al. The Framingham eye study monograph. Surv Ophthalmol 1980;Suppl:333–63.
4. Hillbourne JFH . Social and other aspects of adjustment to single eye cataract extraction in elderly patients. Trans Ophthalmol Soc UK 1975;95:254–9.
5. Laidlaw A, Harrad R . Can second eye cataract extraction be justified? Eye 1993;7:680–6.