[Study of aging macular degeneration].

Aging macular degeneration (AMD) is an important ocular disease causing blind. The study of epidemiology, pathogenetic factors and visual function of AMD show that it has become a disease worth noticing in aged. Although most AMD cases were of the dry type and the patients had rather good visual acuity, various determination of visual function showed different degrees of impairment. Controlling light exposure and improving trace element metabolism may be helpful for early prevention and treatment of AMD. It will also be an important factor in the prevention of blindness in Asian nations.