目的：比较三种单焦点人工晶状体植入术后人工晶状体眼的拟调节力大小。 方法：白内障患者78例78眼根据自愿的原则，采用非随机方式分成三组，Ⅰ组23例23眼植入AcrySof Natural人工晶状体；Ⅱ组24例24眼植入Canon staa人工晶状体；Ⅲ组31例31眼植入聚甲基丙烯酸甲酯(PMMA)人工晶状体。术后3mo检测最佳矫正远视力及在最佳矫正远视力基础上获得的近视力，以及33cm处在最佳矫正近视力基础上获得的近附加值及拟调节力(PAC)。 结果：三组术后3mo最佳矫正远视力差异无统计学意义(F=0.317，P=0.729)；最佳矫正远视力基础上获得的近视力差异有统计学意义(F=3.377，P=0.039)；术后3mo，33cm处在最佳矫正近视力基础上获得的近附加值及拟调节力(PAC)比较差异均有统计学意义(F=10094,P=0.000；F=16.806，P=0.000)。 结论：白内障术后植入三种单焦点人工晶状体拟调节力比较，软性推注式折叠晶状体可获得更高的拟调节力及令人满意的近视力。

AIM: To compare the Pseudophakic accommodation of three monofocal intraocular lens implantation eye after phacoemulsification. METHODS: A total of 78 eyes from 78 patients under going phacoemulsification received intraocular lens based on the principle of voluntary. Twenty-three eyes from 23 patients who had implantation of AcrySof Natural intraocular lens were randomized into groupⅠ. Twenty-four eyes from 24 patients who had implantation of Canon staa intraocular lens were randomized into groupⅡ. Thirty-one eyes from 31 patients who had implantation of Canon staa intraocular lens were randomized into group Ⅲ. Main outcome measures included best-corrected distance visual acuity, distance corrected near vision, and the Pseudophakic accommodation amplitude. All the clinical data were obtained at 3 months postoperatively. RESULTS:At 3 months postoperatively, best-corrected distance visual acuity were similar among the 3 groups(F=0.317, P=0.729). Near vision on the basis of best corrected distance vision were statistically significant (F=3.377, P=0.039), added value on the basis of best-corrected near and the accommodation amplitude were statistically significant (F=10.094, P=0.000; F=16.806, P=0000) the among three groups. CONCLUSION: Three monofocal intraocular lens after cataract surgery implanted all could gain better distance visual acuity, near vision of the Acrysof Natural and the Canon staa intraocular lens implantation were more satisfactory, Acrysof Natural intraocular lens eyes had a better Pseudophakic accommodation.

深圳市宝安区科技创新局2011年宝安区科技计划社会公益(医疗卫生类)立项课题(No.20110459)