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青光眼手术

ID: ANH00002chis
医学动画文字记录:医生将为你做青光眼手术,以解决眼压过高导致的排液问题。前房充满一种称为房水的水状液体,它可以清洗和滋养角膜和晶状体。当房水从后房流入时,不断地流经虹膜和角膜之间的小梁网。房水的正常流动可以保持眼内压力的正常平衡。青光眼患者房水流出太慢或产生太快,导致房水积聚,使眼压升高。在这种压力的作用下,视神经纤维会受损并最终死亡,可能会导致永久性失明。青光眼手术包括激光和非激光手术。手术过程一般需要10~60分钟。如果做激光手术,你要面向激光机器坐下。使用眼药水滴眼麻醉。医生在你的眼内放置一个小装置(开睑器)来撑开眼睑。小梁成形术是一种激光手术,可以增加小梁网的液体排出。在激光小梁成形术中,医生会给你戴上一个特殊的隐形眼镜从而将一束激光聚焦到小梁网上。如果成功,可以排出眼内更多的液体,从而降低眼压。虹膜周边切开术是一种激光手术,可以打开角膜和虹膜之间狭窄或封闭的排液角。这个闭角妨碍了液体的排出。在手术过程中,医生会用激光在虹膜上开一个小洞,让液体在你的眼睛里更自由地流动。睫状体光凝术(CPC)是一种激光手术,可减少房水的产生。在手术中,医生会用激光破坏睫状体中产生房水的部位。如果成功,将减少液体的产生,降低眼压。小梁切除术是一种切开手术,可去除眼内的部分小梁网。在手术过程中,医生用小的器械从眼球壁上切除一小块组织,留下一个小洞,房水可以通过这个洞排出并被重新吸收到血液中。虽然药物和手术治疗可能有助于防止进一步的视力下降,但无法恢复青光眼已经造成的视力损伤。手术结束后,需要监护1~2小时,然后出院。你可能会暂时戴上眼罩或绷带。医生会给你开眼药水,并指导你如何使用。医生可能会建议你保持眼睛干燥一段时间,避免游泳或淋浴,暂时不要开车、举重物或用力。

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