1. Statistics on Blindness in the Model Reporting Area 1969–1970;Kahn,1973
2. The Framingham Eye Study monograph. An ophthalmological and epidemiological study of cataract, glaucoma, diabetic retinopathy, macular degeneration and visual acuity in a general population of 2631 adults, 1973–1975;Leibowitz;Surv. Ophthalmol.,1984
3. The epidemiology of blindness;Cullinan,1987
4. Macular disease in the elderly population;Pauleikhoff;Ger. J. Ophthalmol.,1992
5. Prevalence of ocular disease and blindness in a rural area in the eastern region of Iceland during 1980 through 1984;Jonasson;Acta Ophthalmol. (suppl.),1987