1. Alward, W. L. Biomedicine. A new angle on ocular development. Science 299, 1527–1528 (2003).
2. Vision problems in the U. S. (2002) Prevent Blindness America; National Eye Institute. www.nei.nih.gov/eyedata/. A great source of data on age-related vision problems in the United States.
3. Clark, A. F. Current trends in antiglaucoma therapy. Emerging Drugs 4, 333–353 (1999). A general overview of glaucoma pathogenesis and therapeutic targets.
4. Alward, W. L. M. Glaucoma: The Requisites in Ophthalmology. 1–260 (Mosby, St Louis, 2000). A useful overview of clinical glaucoma.
5. Fraser, S. & Wormald, R. in Ophthalmology (eds Yanoff, M. & Duker, J. S.) 12:1.1–12:1.6 (Mosby, London, 1999).