方法：回顾性分析选取2009-01/2011-12玻璃体切割硅油填充眼不同时机行白内障超声乳化并人工晶状体植入术51例51眼，其中A组17例行玻璃体切割硅油填充联合白内障超声乳化并人工晶状体植入术，术后3～6mo行硅油取出； B组13例行玻璃体切割术后硅油取出联合白内障超声乳化并人工晶状体植入术，C组21例硅油取出术后择期行白内障超声乳化并人工晶状体植入术，比较术后3mo时屈光误差情况。

结果：三组平均绝对屈光误差值分别为(0.873±0.256)D，(0.828±0.134)D，(0.473±0.121)D，A组和B组之间差异无统计学意义(P>0.05)，C组和A组及B组之间差异有统计学意义(P<0.05)。

结论：A超眼轴测量计算人工晶状体度数，玻璃体切割硅油填充眼在取油后择期行白内障超声乳化并人工晶状体植入术屈光误差小。

METHODS: Fifty-one patients(51 eyes)with vitrectomy and silicone oil tamponade performed phacoemulsification and IOL implantation were retrospectively analysed during 2009-01/2011-12 and divided into three groups by different time point of phacoemulsification and IOL implantation. There were 17 cases in A group performed silicone oil tamponade after vitrectomy combined with phacoemulsification and intraocular lens IOL implantation, silicone oil removal was performed after 3-6 months; 13 cases in B group performed silicone oil removal combined with phacoemulsification and IOL implantation; 21 cases in C group of scheduled phacoemulsification and IOL implantation after silicone oil removal, refractive error was compared 3months postoperatively.

RESULTS: The average absolute value of refractive error was 0.873±0.256D in A group, 0.828±0.134D in B group, 0.473±0.121D in C group. There was no statistical significant difference compared with A group and B group(P>0.05), but there was statistical significant difference compared with C group and A, B group(P<0.05).

CONCLUSION: Axial length was measured by A Scan ultrasonograph. The refractive error was small in group of phacoemulsification and IOL implantation after silicone oil removal relatively.