Age related macular degeneration ( AMD) is the leading cause of visual impairment in people over 50 years old. There are two forms of macular degeneration: the atrophic ( dry) type and the exudative ( wet) type.

  • 年龄相关性黄斑变性(aged-related macular degeneration,AMD)是造成50岁以上人群视力障碍的主要原因。

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