不同切口設(shè)計(jì)的白內(nèi)障超聲乳化術(shù)后角膜變化的研究
發(fā)布時(shí)間:2018-07-29 08:49
【摘要】:目的:通過(guò)眼科常規(guī)檢查及角膜地形圖儀觀察兩種不同設(shè)計(jì)的切口白內(nèi)障手術(shù)前后視力、散光及角膜形態(tài)的變化。 方法:收集在我院接受白內(nèi)障超聲乳化吸除聯(lián)合IOL植人術(shù)的患者40例(46眼),隨機(jī)分為A、B兩組。A組作鞏膜隧道自閉式切口,B組作透明角膜切口,兩組位置均在上方(12:00位),大小為3.0mm,兩組核硬度均在Ⅱ-Ⅲ級(jí)之間。采用眼科常規(guī)檢查及角膜地形圖儀觀察白內(nèi)障手術(shù)前,術(shù)后1天、術(shù)后1月、術(shù)后3月的裸眼視力、散光及角膜前表面的形態(tài)變化。 結(jié)果:兩組手術(shù)前的視力比較,差異無(wú)統(tǒng)計(jì)學(xué)意義(PO.05),術(shù)后1天A組的裸眼視力好于B組**(P0.05)。術(shù)后1天、1月、3月兩組的裸眼視力均較術(shù)前有所提高*(P0.05)。術(shù)后1月、3月的裸眼視力兩組比較差別不明顯,差異無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。兩組術(shù)前的散光比較,差異無(wú)統(tǒng)計(jì)學(xué)意義(PO.05),術(shù)后1天、1月、3月A組的散光度數(shù)小于B組,兩組差異有統(tǒng)計(jì)學(xué)意義**(P0.05)。而術(shù)后三個(gè)月和術(shù)前比較散光有所減小,兩組差異有統(tǒng)計(jì)學(xué)意義*(P0.05)。角膜地形圖兩組術(shù)后1天上方切口所在的徑線較手術(shù)前變陡峭,角膜彩色色碼圖較術(shù)前向暖色調(diào)變化。隨著時(shí)間的推移,兩組散光均有所減小。切口對(duì)應(yīng)處(12點(diǎn)位)周邊部的角膜變得相對(duì)平坦,角膜曲率變小,角膜彩色色碼圖向冷色調(diào)變化,其余部分彩色色碼圖無(wú)明顯變化。術(shù)后1月、3月兩組患者的變化不明顯。 結(jié)論:1.鞏膜隧道切口對(duì)角膜形態(tài)的影響較小、散光較小。2.鞏膜隧道切口具有同透明角膜切口相同的優(yōu)點(diǎn),術(shù)后視力恢復(fù)較好、較安全。3.鞏膜隧道切口術(shù)后早期的視力好于角膜切口組,遠(yuǎn)期兩組的差別不明顯。4.選擇在角膜最大屈光力的徑線上作切口對(duì)所在子午線的角膜曲率有松解作用,能在一定程度上矯正部分散光。
[Abstract]:Objective: to observe the changes of visual acuity, astigmatism and corneal morphology before and after cataract surgery in two different incisions by routine ophthalmic examination and corneal topography. Methods: forty patients (46 eyes) who received phacoemulsification combined with IOL implantation in our hospital were randomly divided into two groups: group A: scleral tunnel closed incision group B: transparent corneal incision. The two groups were in the upper position (12:00 position) and the size was 3.0 mm. The hardness of the two groups was between grade 鈪,
本文編號(hào):2152141
[Abstract]:Objective: to observe the changes of visual acuity, astigmatism and corneal morphology before and after cataract surgery in two different incisions by routine ophthalmic examination and corneal topography. Methods: forty patients (46 eyes) who received phacoemulsification combined with IOL implantation in our hospital were randomly divided into two groups: group A: scleral tunnel closed incision group B: transparent corneal incision. The two groups were in the upper position (12:00 position) and the size was 3.0 mm. The hardness of the two groups was between grade 鈪,
本文編號(hào):2152141
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