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目的 探讨巩角膜隧道切口的白内障超声乳化吸除及硬性 PMMA人工晶状体植入术的疗效。方法 在上方角膜缘后界做 3.5 m m隧道切口 ,对 6 8例 (72眼 )老年性、并发性和外伤性白内障行超声乳化术 ,并植入硬性 PMMA人工晶状体。结果 术后 1天、1周、1个月和 3个月裸眼视力≥ 0 .5者分别为 84.4%、88.8%、91.7%和93.1%。术后 1周平均散光为 (1.2 5± 0 .2 5 D)。比术前增加 0 .10 D(P >0 .0 5 )。术后 1个月和 3个月平均散光分别为 (0 .90± 0 .2 5 D)和 (0 .75± 0 .5 0 D) ,与术前无统计学差异 (P >0 .0 5 ) ,与巩膜隧道切口散光比较结果基本相同。结论 经巩角膜隧道切口白内障超声乳化吸除及硬性 PMMA人工晶状体植入 ,操作便捷 ,手术疗效好 ,视力及屈光状态稳定。
Objective To investigate the efficacy of phacoemulsification and hard PMMA implantation for cataract extraction of the cornea tunnel incision. Methods A 3.5 m m tunnel incision was made in the posterior limbal margin of the upper limbus, and 68 cases (72 eyes) of senile, complicated and traumatic cataract were treated by phacoemulsification and implanted with hard PMMA intraocular lens. Results The uncorrected visual acuity ≥0.5 at 1 day, 1 week, 1 month and 3 months after operation were 84.4%, 88.8%, 91.7% and 93.1% respectively. One week after surgery, the average astigmatism was (1.2 5 ± 0.52 D). Than the preoperative increase of 0.1 D (P> 0.05). The mean astigmatism at 1 month and 3 months after operation was (0.90 ± 0.225D) and (0 .75 ± 0 .5 0D), respectively, with no significant difference from preoperatively (P> 0.05) 5), and scleral tunnel incision astigmatism comparison results are basically the same. Conclusions Transocclusal tunnel incision cataract phacoemulsification and hard PMMA intraocular lens implantation, convenient operation, good curative effect, stable visual acuity and refractive status.