Abstract: Different Position of Clear Corneal Incision Phacoemulsification Postoperative Astigmatism Analysis Wu Na Zhang Rui. The First Center Hospital,Tianjin,300192,China Abstract Objective：Comparison of different position of clear corneal incision phacoemulsification and astigmatic changes after operation. Methods：The age-related cataract patients in 70 cases (70 eyes) were divided into two groups, group A patients using temporal above ( right) or nasal incision above (left), B group according to the curvature of the Cornea Corneal radial axial do under the guidance of the largest clear corneal incision. All the patients underwent phacoemulsification combined with intraocular lens implantation after operation respectively,1 weeks,1 months, and 3 months follow-up of patients,patients were examined for vision and corneal topography . Results: After 3months in B group than these in A group of uncorrected visual acuity,B group of patients after 1 weeks of corneal astigmatism changes less than group A. Conclusion: According to the cornea diopter axial orientation maximum radial make clear corneal incision phacoemulsification on postoperative corneal astigmatism, the impact of small, can achieve early refractive stability.

Key words: Incision, Corneal astigmatism, Cataract phacoemulsification