[Aging macular degeneration in Tibetan and Han].
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002681:China; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008268:Macular Degeneration / Q000453:epidemiology / Q000208:ethnology*; D008297:Male; D008875:Middle Aged; D012307:Risk Factors