Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

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Macular degeneration黄斑变性

Macular degeneration is a painless disorder that affects the macular, the central part of the retina in one or more usually both eyes, causing progressive loss of central and detailed vision.黄斑变性是一种无痛性障碍，影响黄斑部，中央部分的视网膜在一个或多个通常都眼睛，造成逐渐丧失中央和详细的视野。 Affected people find it difficult to read, to recognize people or to drive.受影响的人觉得很难看，承认人或驾驶。 However, the area surrounding the macular is not affected so peripheral vision remains clear and sufferers can still move around fairly freely.然而，周围地区的黄斑是不会受到影响，使周边视力仍然是明确和患者仍可以走动，相当自由。 Complete blindness never occurs from this disease.完整的盲目性，从来没有发生这种疾病。

The incidence increases with each decade over the age of 50 to almost 15% by the age of 75 although there are some rare forms that affect younger people.发病率增加，每10年50岁以上的将近15 ％ ， 75岁，虽然有一些罕见的形式影响到年轻的人。 Macular degeneration is more common in females.黄斑变性是较常见于女性。 Other risk factors are family history, smoking and exposure to sunlight.其他的危险因素，家族病史，吸烟，大量接触到阳光。