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    1. 您现在的位置:主页 > 健康 > 心灵鸡汤 > 【科普】涨姿势!3分钟带你看懂近视手术的由来!

      【科普】涨姿势!3分钟带你看懂近视手术的由来!

      导读:

      早在两千年前的古罗马,有一位国王超爱看球赛,但因为视力不好,一场比赛看下来,都不知道自己在为谁打call。

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      后来有一位工匠,用绿宝石打磨了一只单片眼镜献给国王,国王才开始看清比赛。

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      到了16世纪,达芬奇让一个男人把脸埋进一只装满水的玻璃碗里,那人非但没有生气,还由此感慨“这是他一辈子看的最清楚的时刻”。

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      从此以后,达芬奇就爱上了把人脑袋按到水里的游戏,并从此提出了角膜屈光的设想。

      再到后来,一位叫穆勒的玻璃工人,做出了第一幅隐形眼镜,直径大约是18-21毫米,比现在的隐形眼镜大得多(小编表示14.2直径的美瞳都已经快塞不进眼睛里了)。又大又硬的玻璃质隐形眼镜,配戴场景类似《发条橙》这张剧照,就问你怕不怕?

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      到了现代,隐形眼镜已经做得越来越薄了,但即使这样每天配戴还是会对眼睛造成不小的伤害。于是科学家们开始打起了角膜的主意,如果角膜自带凹镜效果,不就能起到矫正屈光的作用了吗?

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      但角膜这么薄,怎么打磨呢?所幸人类又发明了激光术,在角膜上挖掉一块不就可以变成一块凹镜了吗?这就是最初的近视激光手术啦!

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      随着科技的发展,近视手术又发展为多种方式:

      飞秒激光近视手术

      飞秒激光手术在切削角膜时不再需要使用微型角膜刀,当飞秒激光穿过角膜时,会通过电极作用产生气泡来将角膜分离,其切割更快、更准、更均匀。掀开角膜瓣之后,再由准分子激光气化切削角膜基质,实现了“全程无刀手术”,把激光近视手术推向了一个更精确、更安全、更清晰的新高度。

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      ICL晶体植入近视手术

      ICL晶体植入术又叫“可植入式隐形眼镜”,不切削角膜,通过微创手术将晶体植入眼内,对角膜无损伤,完整保留了眼睛生理结构和调节功能,矫正之后视力更清晰,是世界范围内近视矫正技术的新趋势。这一手术可矫正50-1800度近视和600度以内的散光,高清、安全,可随时取出,尤其适合高度近视者、角膜厚度不够的人群。

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      当然,不论是哪种手术方式,其效果如何都跟医院的设备以及医生的技术密不可分,所以一定要找有资质的医院进行手术!

      TAG:早在 两千 看懂 3分钟 由来 带你 科普 手术 近视 姿势 ★★★ 友情提示:点击图片可进入下一页 ★★★
      收藏】【 复制给好友扩展阅读:豆浆 便秘怎么办 什么时候最容易受孕 肠胃不好怎么调理

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