Ophthalmic epidemiology has benefited from large, longitudinal, population-based studies of eye health from multiple countries in the past 30 to 40 years, including the Singapore Epidemiology of Eye Diseases (SEED) study. Well-conducted cross-sectional studies have been invaluable in globally mapping the burden of eye disease. The Global Burden of Disease Vision Loss Expert Group has made use of more than 200 data sets for this purpose,1 although some regions—Central Africa, Central and Eastern Europe, the Caribbean, and Latin America—are underrepresented in this body of research.
Keay L. Ethnic Differences in Self-reported Visual Function Among Patients With Age-Related Macular DegenerationImplications for Care. JAMA Ophthalmol. 2017;135(5):476-477. doi:10.1001/jamaophthalmol.2017.0272