摘要
Abstract
AIM: To investigate the long-term effect of different incisions on the tear film after phacoemulsification. <br> METHODS: Sixty-four patients ( 76 eyes ) without dry eyes were selected and received phacoemulsification.The patients were divided into two groups randomly.Group A 30 patients (38 eyes) was performed with a 2.5mm mini-incision coaxial phacoemulsification and group B 34 patients ( 38 eyes ) was performed with a sub 1.8mm micro-incision cataract surgery ( MICS ) .Schirmer I test (SⅠt), tear break-up time (BUT), corneal fluorescein staining ( CFS) and tear osmolarity were observed at 3d preoperatively and 1wk, 1, 3, 6mo and 1a postoperatively.The results were analyzed using a chi-square test and t-test with SPSS 19.0. <br> RESULTS: ( 1 ) Schirmer Ⅰ test ( SⅠt ): there was a significant increase in SIt at 1wk postoperatively. The difference between group A and group B was significant (P<0.01) at 1wk postoperatively, but it was insignificant at other postoperative time points (P>0.05).(2) Tear break-up time ( BUT):there was a large reduction in BUT at 1wk, 1, 3mo postoperatively.The difference between group A and group B was significant (P<0.05).However, there were no significant differences between the two groups at other times ( P>0.05 ) .( 3 ) CFS score: there was a large increase in CFS at 1wk, 1, 3mo postoperatively. The difference between group A and group B was significant ( P<0.05).However, there were no significant differences between the two groups at other times ( P>0.05 ) .( 4 ) Tear osmolarity: there was a large increase in tear osmolarity at 1wk, 1mo postoperatively. The difference between group A and group B was significant (P<0.01).However, there were no significant differences between the two groups at other times (P>0.05). <br> CONCLUSION: The stability of tear film in patients underwent sub 1.8mm micro-incision cataract surgery (MICS) is much better than in patients received 2.5mm mini - incision coaxial phacoemulsification, but symptomys of dry eye in patients operated with MICS are much more serious during the early postoperative period. There is no significant difference in the long-term effects on tear film between the two types of incision.关键词
白内障超声乳化吸除术/双轴微切口/同轴小切口/泪膜/老年人Key words
phacoemulsification/micro-incision/mini-incision coaxial/tear film/old people
