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众所周知,囊内摘除白内障是一种常用的眼科手术方法。术中普遍使用二氧化碳干冰、氟利昂、桂胶等,在手术中若操作不当或稍不注意,极易发生误粘冻住虹膜的现象。为了解决这个问题,一些人研制并试用了各种类型的虹膜拉钩。这类虹膜拉钩式样不一,但其结构与用法大致相似,都具有拉虹膜切实,暴露晶状体面积大等优点。但是使用这类拉钩不能将挽出晶体与撤钩动作同时进行,影响手术效果。尤其在玻璃体流失的情况下,撤钩必须重新掀开角膜
As we all know, intracapsular cataract extraction is a commonly used method of ophthalmic surgery. Intraoperative use of carbon dioxide dry ice, Freon, Guijiao, etc., if the operation improper or slightly ignored, extremely prone to false stick frozen iris phenomenon. In order to solve this problem, some people have developed and tested various types of iris hooks. This type of iris hooks vary in style, but its structure and usage are generally similar, have a practical pull iris, exposure to the advantages of large lens area. However, the use of such pull-hook can not pull out the crystal and withdraw the hook at the same time, affecting the surgical results. Especially in the case of vitreous loss, the hook must be re-opened the cornea