Age-related macular degeneration ( AMD ), loss of vision in the center of the visual field ( macula ) due to retinal damage , is one of the leading causes of legal blindness among the elderly .
老年性黄斑变性（AMD），即由于视网膜损伤造成的中心视野（黄斑）视力丧失，是老年人失明的主要原因之一。
amd vision