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目的探讨经颞侧透明角膜隧道切口行现代白内障囊外摘除及人工晶体植入术的效果及其优、缺点。方法用角膜隧道专用刀在颞侧角膜周边血管弓中央的透明角膜上,做一宽3.2mm,长1.75～2mm的隧道切口,对180例(180只眼)白内障施行现代白内障囊外摘除及人工晶体植入术,术中观察手术时间,术后观察视力、角膜散光及角膜内皮的变化。结果手术时间平均11分钟;术后第1天、1周、1月和3月,51.2%、79.6%、95.3%和97.8%的术眼矫正视力达到或超过0.8,早期切口基本闭合好,视轴中央角膜散光无明显变化,角膜内皮细胞丢失率为5.42%。并发症主要有角膜后弹力层撕脱(1.66%)、囊样黄斑水肿(0.55%)、切口自闭欠佳(1.11%)。结论经颞侧透明角膜隧道切口行现代白内障囊外摘除及人工晶体植入术,具有操作方便、手术时间短、手术疗效好及稳定、术后角膜影响小等优点。
Objective To investigate the effect and advantages and disadvantages of extracapsular cataract extraction and intraocular lens implantation through temporal clear corneal tunnel incision. Methods A tunnel incision of 3.2mm in length and 1.75 ~ 2mm in length was made on the cornea of the central cornea of the cornea surrounding the temporal cornea using a special corneal tunnel knife. In 180 cases (180 eyes) of cataract, extracapsular cataract extraction and artificial Intraocular lens implantation was used to observe the operation time, postoperative visual acuity, corneal astigmatism and corneal endothelium changes. Results The average operation time was 11 minutes. The corrected visual acuity of 51.2%, 79.6%, 95.3% and 97.8% at 1 day, 1 week, 1 month and 3 months after operation reached or exceeded 0.8. Axial corneal astigmatism no significant change in corneal endothelial cell loss rate was 5.42%. The main complications were avulsion of the corneal posterior layer (1.66%), cystoid macular edema (0.55%), poor incision (1.11%). Conclusions Transient temporal clear corneal tunnel incision underwent extracapsular extracapsular cataract extraction and intraocular lens implantation, which has the advantages of convenient operation, short operative time, good and stable operation and small corneal postoperative impact.