Error message

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近视

什么是近视？

近视是屈光不正的一种。远处物体在视网膜前方成像而造成视像模糊。造成近视的原因是眼球（角膜和晶体）的屈光度数太大或眼球轴长太长。近视眼需要负的镜片更正。

近视是遗传还是后天？

都有。遗传会使你更容易受后天环境的影响而近视得更快更深。但如注意用眼卫生，运用专业防治手段如CRT，可将近视尽量减少。反之，父母不近视，不注意用眼卫生而近视的有太多例子了，

近视有什么危害？

除了需要带厚厚的眼镜，近视还可能造成视网膜病变，视网膜剥落和青光眼。

近视有什么防治方法？

看具体情况，可以采用一种或多种方法

  • 镜片：双光或多光聚镜片可以放松眼球屈光的调节肌。
  • 眼保健操：按摩中医针灸的穴位可以放松眼部肌肉，休息眼睛。
  • 眼部调节训练：眼部运动肌和调节肌的训练可使提高眼睛视力的效率。眼睛就不那么容易疲劳。 增加眼睛视力的抗压能力。假性近视就是调节肌放松能力太差导致的。
  • 硬式透氧接触镜：提供清晰视觉。比戴一般框架镜近视增加要小。
  • 角膜屈光治疗（CRT）: 请看网页CRT 一章的详细介绍。