白内障激光乳化与超声乳化术后角膜内皮变化分析

Changes of corneal epithelium in Er:YAG laser phacoemulsification and ultrasonic phacoemulsification for cataract surgery

目的比较白内障激光乳化吸出术与超声乳化吸出术对角膜内皮形态、密度及角膜厚度的影响。方法对30例(32眼)白内障行激光乳化及后房型人工晶状体植入术,同期进行30例(35眼)超声乳化及后房型人工晶状体植入术,对术眼角膜内皮细胞损失率、六边形细胞百分率及角膜厚度的变化进行比较。结果术后1周、1个月及3个月,激光乳化组角膜内皮损失率分别为7.56%、5.26%及5.12%,均明显低于超声组的10.31%、11.04%及8.37%;激光组六边形细胞百分率分别为52.49%、53.28%及53.60%,均明显高于超声组的45.30%、46.61%及46.63%;角膜厚度增加率激光组为11.26%、4.91%及2.45%与超声组的12.69%、5.69%及2.92%相比无统计学差别。结论激光乳化术较超声乳化术对角膜内皮损伤更小,安全性更高。

Objective To compare the cornea changes after Er：YAG laser phaeoemulsification and ultrasonic phacoemulsification for cataract surgery. Methods Er：YAG laser was performed on 30 cases （32 eyes） of senile cataract （laser group）, ultrasonic phacoemulsifieation was performed on 30 cases （35 eyes） of senile cataract （phaco group） , together with IOL implantation. The loss rate of cornea endothelium, the rates of hexagonal cell and corneal thickness were compared. Results The rates of lost corneal endothclium 1 week,1 month and 3 month post-operatively in laser group were 7.56% , 5.26% and 5.12% respectively; and those in phaco group were 10.31% ,Ⅱ. 04% and 8.37% respectively. The rates of hexagonal cell after operation in laser group were 52.49%, 53.28% and 53.60%, and those in phaco group were 45.30%, 46.61% and 46.63% respectively. The difference of the comeal thickness between the two groups was no statistic significance. Conclusion For cataract extraction, Er：YAG laser emul- sification may be safer than that of ultrasonic phacoemulsification.