目的观察巩膜隧道切口超声乳化和非超声乳化白内障摘除术联合人工晶体植入术对角膜形态的影响。方法两组老年白内障由同一人施行手术 ,非超声乳化组 4 2眼 ,超声乳化组 6 6眼 ,均采用 5～ 6mm巩膜隧道切口 ,用Zeis公司Humphrey计算机辅助的角膜地形图检查术后 1周、2周、1月、3月的角膜形态。结果术后 1周、2周的视力两组比较有显著性差异 (t=5 .5 787,3.935 4P <0 .0 1) ,1月、3月视力恢复状况无差别 (t=0 .6 930 ,0 .32 2 8,P >0 .0 5 ) ,两组术后散光状况亦提示短期有一定差别 ,phaco组在术后 1周、2周优于相应时期的N -phaco组 (t=5 .5 787,3.935 4P <0 .0 1)。CIM显示 1周、2周时两组不同 (t=4 .80 15 ,3.2 2 78P <0 .0 1) ,晚期角膜形态的恢复状况接近。SF的变化两组无明显区别 (P >0 .0 5 )。结论巩膜隧道切口非超声乳化摘除联合人工晶体植入术与同样切口的超声乳化白内障摘除联合PMMA人工晶体植入的远期角膜形态的改变无明显差异 Objective To observe the effect of scleral tunnel incision phacoemulsification and non-phacoemulsification cataract extraction and intraocular lens implantation on corneal morphology. Methods Two groups of senile cataract were operated by the same individual. Non-phacoemulsification group (42 eyes) and phacoemulsification group (66 cases) were performed with 5 ~ 6 mm scleral tunnel incision. The corneal topography of Humphrey by Zeis was used to check the postoperative week , 2 weeks, January, March corneal morphology. Results There was a significant difference between the two groups in visual acuity at 1 week and 2 weeks after surgery (t = 5.5787 and 3.935 4P <0.01). There was no difference in visual acuity between January and March (t = 0.6 930, 0 .32 2 8, P> 0.05). The postoperative astigmatism status of the two groups also showed some short-term differences. The phaco group was better than the corresponding N -phaco group at 1 week and 2 weeks = 5 .5 787,3.935 4P <0 .0 1). CIM showed a difference between the two groups at 1 week and 2 weeks (t = 4.80 15, 3.2 2 78P <0 01), and the recovery of advanced corneal morphology was similar. The change of SF had no significant difference between the two groups (P> 0.05). Conclusions The scleral tunnel incision phacoemulsification combined with intraocular lens implantation with the same incision phacoemulsification cataract extraction combined with PMMA intraocular lens implantation of long-term corneal morphological changes had no significant difference