The effect of “T”incision on distant stereovision of cataract patients with high cornea astigmatism
10.3969/j.issn.1671-8348.2014.23.019
- VernacularTitle:横切口对白内障伴角膜高度散光患者视功能和立体视觉的影响
- Author:
Xiaohong LI
;
Tiemin ZHANG
- Publication Type:Journal Article
- Keywords:
“T”incision;
cornea astigmatism;
cataract;
stereovision
- From:
Chongqing Medicine
2014;(23):3028-3030
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of “T”incision on distant stereovision of cataract patients with high cornea astigma-tism .Methods 40 age-related cataract patients (40 eyes) with high cornea astigmatism for surgery in our hospital were divided into two groups :A(20 eyes) an B(20 eyes) .The A groups received superior(11 :00) clear corneal incision(CCI) .The B groups besides the superior(11:00) CCI ,for surgery on the steepest meridian ,an additional couple of “T”incisions were made to release the preex-isting corneal astigmatism .The operation eyes were all implanted Rayner foldable posterior chamber intraocular lens .The UCVA , corneal astigmatism ,distant stereovision were observed at 3 months after operation .Results The UCVA in each group after sur-gery was all better than that of preoperation ,difference being statistically significant (P<0 .01) .the difference between Group A and Group B was significant(P<0 .05);In Group A ,there were no significant difference on the corneal J0 and P before and after op-eration(P>0 .05) ,The corneal J0 and P in group B after surgery were lower than that of preoperation .difference being statistically significant(P<0 .01) .difference between Group A and Group B(P<0 .01) at 3 months postoperation was statistically significant (P<0 .01);The stereopsis in each group after surgery was all better than that of preoperation ,difference being statistically significant (P<0 .01) .the difference between Group A and Group B postoperation was significant (P<0 .05) .Conclusion the“T” incisions on the steepest corneal meridian can improve the patient′s visual function and distant stereovision .
