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内眼手术,特别是白内障摘出术,必须安置上直肌牵引线,收紧此缝线后,使眼球转向下方,眼球相对固定,手术野暴露较大,有利手术进行。过去传统做法是:沿直肌走行方向注射少量麻醉剂,或在上直肌肌止处,用可卡因棉花棒按住数分钟(赵东生氏法。笔者认为用的卡因亦可),然后用闭合单齿镊从12点处角膜缘顺结膜面向后伸8mm,压下,张开4mm,再合拢镊子,即夹住上直肌肌止端,能把眼球引向下方,此时,在肌止后3mm肌下穿过一缝线,该操作就完成了。但这操作对初学
Intraocular surgery, especially cataract extraction, must be placed on the rectus traction wire, tighten the suture, the eye turned to the bottom, the eye is relatively fixed, surgical field exposure larger, favorable surgery. In the past the traditional practice is: along the direction of rectus muscle injection a small amount of anesthetic, or in the upper rectus abdominis, with cocaine cotton swab to hold a few minutes (Zhao Dongsheng method. I believe that the use of cocaine can), and then closed Tooth tweezers from 12 points at the junction of the corneal margin of the conjunctiva stretch 8mm, depressing, open 4mm, and then close the tweezers, that is, the upper rectus muscle holding only the end, the eye can lead to the bottom, at this time, after the muscle only 3mm submuscular through a suture, the operation is completed. But this operation for beginners