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近視眼的手術治療
少兒期

        PRK:準分子激光角膜切削術  手術的原理為應用準分子[5]激光切削角膜中央前表面,即除去上皮層的前彈力層和淺層基質,使角膜前表面彎曲度減少,曲率半徑增加,屈光力減低,焦點向后移至視網膜上,達到矯正近視的效果,這好比在自己的角膜上磨制一副近視眼鏡片一樣。因術后疼痛、需長期用    (共 1608 字)     [閱讀本文] >>

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