Sunlight-its etiological role in cataract formation.
D000328:Adult; D000367:Age Factors; D000368:Aged; D002386:Cataract / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D011832:Radiation Injuries / Q000453:epidemiology*; D013472:Sunlight / Q000009:adverse effects*