不同丙烯酸材料的人工晶状体对后发性白内障的影响

Comparison of three kinds ofintraocular lenses with different acrylic materials on the development of posterior capsule opacification after cataract surgery

目的探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用。方法超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者（964只眼），Sensar组310只眼，Acrysof三片组332只眼，Acrysof一片组322只眼，术后定期随访18～28个月，观察视力、后发性白障的发生情况。结果术后随访24月时，发生1级以上后囊膜混浊SensarIOL组的发生率（13．5％），明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率（7．5％，3．7％）。经卡方检验，P值均〈0．05，有显著性差异，而Acrysof三片式IOL组后囊膜混浊的发生率较Acrysof一片式IOL组高，P〈0．05。结论AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低，可以减少后发性白内障的发生降低Nd：YAG激光的使用率，提高手术效果，是现代白内障手术可选择的理想的人工晶状体。

Objective To evaluate the effect of three kinds of foldable intraocular lens （IOL） with different acrylic materials on posterior capsule opacification （PCO） after phacoemulsification. Methods A total of 960 patients （964 eyes） who had phacoemulsification and implantation of acrylic IOLs. Their clinical data were retrospectively analyzed. Group A included 310 eyes with implantation of Sensar IOL and group B included 332 eyes with implantation of three piece acrylic AcrySof IOL. Group C included 322 eyes with implantation of three piece acrylic AcrySof IOL. Best corrected visual acuity （BCVA）, the rate of PCO were evaluated after the surgery. Results The rates of PCO with the one piece AcrySof IOL and three pieces AcrySof IOL were 3.7% and 7.5%. The rate in group A was 13.5% at 24 months,respectively. One piece IOL group was better than group A and B. （p〈0.05）. Conclusions This study shows a low rate of PCO in patients who receive one piece acrylic AcrySof lenses when compared to those who receive three piece acrylic lenses.