白内障超声乳化吸除及折叠型人工晶状体植入术的临床观察

CLINICAL OBSERVATION OF PHACOEMULSIRICATION AND FOLDABLE INTRAOCULAR LENS IMPLANTATION

目的比较不同术式对术后角膜屈光状态和视功能恢复的影响 ,探讨能够在术后早期迅速恢复视力的白内障术式。方法对四组 (2 98例 )老年性白内障分别采用超声乳化白内障吸除及折叠人工晶状体植入 (超乳Ⅰ组 )、超声乳化非折叠晶状体植入 (超乳Ⅱ组 )、小切口非超乳白内障摘除 (小切口组 )和白内障囊外摘除术 (囊外组 )。结果术后第 3d、第 1周平均裸眼视力 ,超乳Ⅰ组与其它组比较 ,视力明显好于其他各组 (P <0 .0 5 ) ;第 1月和第 3月平均裸眼视力 ,超乳Ⅰ组、超乳Ⅱ组、小切口组比较差异无显著性 ,但仍与囊外组有差别。术后平均角膜散光情况 ,术后 1周和 1月时超乳Ⅰ组较其它三组都小 ,与各组比较差别均有显著性 (P <0 .0 5 )。 3月时超乳Ⅰ组的角膜散光与超乳Ⅱ组、小切口组相近 ,两两比较差别无显著性 (P >0 .0 5 ) ,与囊外组有差别。

ObjectiveTo compare the influence of different cataract extraction on astigmatism and recovery of vision function.To explore the possibility in establishment of a method of cataract operation capable of recovering normal visual acuity rapidly at the early stage of postoperation. Methods298 eyes with senile cataract were divided into 4 groups:phacoemulsification with silicone foldable intraocular lens(IOL) implantation group (phacoemulsificationⅠ),phacoemulsification with one-piece IOL implantation group (phacoemulsificationⅡ), small incision cataract extraction with one-piece IOL implantation group (small incision) and extracapsular cataract extraction with one-piece IOL implantation group (ECCE). ResultsThe average uncorrect visual acuity of phacoemulsification Ⅰ group was significantly better than that of other groups 3 d and 1 week after the operation(P< 0.05).No difference was found in the average uncorrect visual acuities among phacoemulsification Ⅰ group, phacoemulsification Ⅱ group and small incision group 1 month and 3 month after operation,while notable difference was seen between these three groups and that of ECCE group(P< 0.05). The mean postoperative astgmatism of phacoemulsification Ⅰ group was significantly less than that of other groups 1 week and 1 month after operation (P< 0.05).The mean postoperative astgmatism of phacoemulsification Ⅰ group was not significantly different from that of phacoemulsification Ⅱ group and small incision group 3 month after the operation(P> 0.05),which was different from that of ECCE group(P< 0.05). ConclusionThe phacoemulsification with foldable intraocular lens implantation was the best method in rehabilitating visual acuity and stabilizing the refractive situation at the early stage of postoperation.