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視力保健知多少 - 飛蚊症

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  • 是眼睛玻璃體退化的現象。
  • 玻璃體原本是透明的膠狀物質,退化時形成絲狀或點狀或圓圈狀的纖維狀物質在玻璃體中飄來晃去。
  • 當仰望天空或白色背景時較易看到。
  • 多半中年以後才會看到,但高度近視或受過傷害的眼睛可能提早發生。
  • 飛蚊症本身多半不會影響視力和眼球功能。但仍要多注意,定期追蹤檢查。尤其是:
    1. 看到亮光一閃一閃,這表示玻璃體退化過程中,纖維狀物質拉扯到視網膜。
    2. 看到較大片的黑影或黑影突然增加,甚至視力模糊,這表示視網膜可能被拉破了,而有玻璃體出血或視網膜剝離的併發症。這時就可能需要雷射或手術等治療。
Written by 網站○ Created: Friday, 14 June 2013 10:44
COM_CONTENT_MODIFIED_BY Last Updated: Wednesday, 29 August 2018 17:12

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