·AIM:To evaluate the changes of corneal refraction after different pterygium surgery.·METHODS:A total of 43 eyes with primary pterygium were included in the study;They were divided into 2 groups:pterygium excision with conjunctival autograft transpIantation performed in A group(21 cases 21 eyes),pterygium excision with corneal limbal stem cell transplantation performed in B group(22 cases 22 eyes).Naked visual acuity,corneal curvature and corneal astigmatism were measured and compared in preoperative,postoperative 2 weeks.·RESULTS:In group A and B,the results of naked visual acuity,corneal curvature and corneal astigmatism in postoperative 2 weeks were different to that of preoperative with statistical significance.While the changes in postoperative 2 weeks had no statistical singificance difference between two groups.·CONCLUSION:The surgery for pterygium can change the corneal refraction.Both pterygium excision with conjunctival autograft transplantation and pterygium excision with limbal stem cell transplantation can decrease astigmatism degree and improve visual acuity.·