20G 玻璃体切割术临床效果分析

目的：探讨20G玻璃体切割手术的安全性和有效性。方法：选取2013年2月至2013年4月在我院行20G玻璃体切割术的患者44例（44眼）。结果：术后视网膜完全解剖复位44眼（100％）；玻璃体切割手术前与手术后1、2、3d眼压的差异具有统计学意义（P〈0．05），与手术后1月眼压之间的差异无统计学意义（P〉0．05）；手术前与手术后1、2、3d、1月最佳矫正视力的差异具有统计学意义（P〈0．05），术后1d视力较术前提高21眼（47．7％）；术后2d视力较术前提高25眼（56．8％）；术后3d视力较术前提高27眼（61．4％）；术后1月视力较术前提高32眼（72．7％）；对术后视力〈0．1与≥0．1的病例分析发现，视力的好坏与手术时间的长短存在关系（t=2．959，P=0．005）；高度近视眼与非近视眼术后1月最佳矫正视力之间的差异有统计学意义（x2=4．528，P=0．（133），且非近视眼较高度近视眼手术效果好。结论：20G玻璃体切割术仍然是一种治疗玻璃体视网膜疾病安全有效的技术，手术成功率高、术后视力恢复理想、术后眼压控制理想。

Analysis of clinical effect of 20G vitrectomy

Objective： To evaluate the safety and effectiveness of 20G vitrectomy. Methods： 44 cases （44 eyes） of 20G vitrectomy from February 2013 to April 2013 in our hospital were retrospectively analyed. Results： Complete anatomical reduction of retina were achieved in all 44 eyes after operation. The differences of intraocular pressure （IOP） before operation and 1, 2 and 3 d after operation were significant （P 〈 0.05）, but became not significant 1 month after operation （P 〉 0.05）. The differences of the best corrected visual acuity preoperation and 1, 2, 3 d and 1 month postoperation were significant （P 〈 0.05）. Compared with preoperation, visual acuity was improved in 21 eyes ld after operation, increased to 25 eyes 2 d postoperation, 27 eyes 3 d postoperation, 32 eyes 1 month postoperation. The analysis of pationts with visual acuity 〈 0.1 and t〉0.1 after the operation showed that the operation time is related to the visual acuity （P 〈 0.01） ; the difference between non myoria and high myopia had significance in best corrected visual acuity 1 month after operation （P 〈 0.05）, and non myopia is better than high myopia in the respect of operation effect. Conclusion： 20G vitrectomy is a safe and effective technique to treat vitreoretinal disease. It has high success rate, ideal recovery of visual acuity, and ideal IOP control after operation.