摘要
目的比较两种不同攀设计的非球面人工晶状体在囊袋内植入后伪调节力的差异。方法临床病例对照研究。选择2012年5—12月在延边大学附属医院眼科行超声乳化白内障摘除联合人工晶状体植入术的老年性白内障患者82例（126只眼），应用随机数字表法随机分为两组，SN60WF为IQ组植入“L”形Acrysof IQSN60WF （Alcon Laboratories，Fort Worth，Texas，USA）人工晶状体（59只眼）；Adapt AO为AO组植入一体四点Akreos Adapt AO（Bausch ＆ Lomb，Rochester，NY，USA）人工晶状体（67只眼）。采用眼前段光学相干断层扫描仪（AS-OCT）实时测量人工晶状体眼在诱导调节状态下的调节幅度、前房深度及瞳孔直径等变化。结果两组非球面人工晶状体植入术后平均伪调节力：AO组为（1．09±0．51）D，IQ组为（1．26±0．34）D。两组差异有统计学意义（t=2．314，P=0．041）。IQ组前房深度变化值为（0．29±0．12）mm，AO组为（0．21±0．15）mm，两组差异有统计学意义（t=2．642，P=0．034）。IO组瞳孔直径变化值为（0．52±0．20）mm，AO组为（0．49±0．16）mm，两组差异无统计学意义（t=0．946，P=0．541）。两组的瞳孔直径与伪调节力，差异有统计学意义（r=-0．651，P=0．024）。结论超声乳化白内障吸除联合折叠式单焦点非球面人工晶状体植入术后存在一定的伪调节力，不同攀设计可产生伪调节力的差异。AS—OCT是动态检测人工晶状体眼伪调节过程中眼前段结构的变化的一种有效方法。
Objective To compare the pseudophakic accommodation of different designs of aspheric intraocular lens （IOL） in phacoemulsification. Methods One hundred and twenty-six eyes with cataract surgery were randomized into 2 groups： an Acrysof IQ SN60WF （Alcon Laboratories, Fort Worth, Texas, USA） IOL group （59 eyes） and Akreos Adapt AO （Bausch ＆ Lomb., Rochester, NY, USA） IOL group （67 eyes）. Patients were examined using anterior segment optical coherence to- mography （AS-OCT）, including anterior chamber depth （ACD）, pupil diameter, and amplitude of pseu- dophakic accommodation, preoperatively and 6 months postoperatively. Results The IQ IOLs and AO IOLs group of mean pseudophakic accommodation was （1.26±0.34）D and （1.09±0.51）D, respec- tively, there was statistically significantly different （t =2.314, P =0.041）. The mean pupil diameter measurements for IQ group and AO IOL group were （0.52±0.20）mm and （0.49±0.16）mm, respective- ly, which showed no statistically significant differences （t =0.946, P =0.541）. The amplitude of pseu- dophakic accommodation was negative correlated with pupil diameter （r =-0.651, P =0.024）. Con- clusions The movement of aspheric IOLs in eyes after cataract surgery is an important mechanism for attaining good near vision without additional correction, 2-point haptic design IOLs provide bet- ter pseudophakic accommodation than that of Four-point haptic designs.
出处
《中国实用眼科杂志》
2015年第2期119-122,共4页
Chinese Journal of Practical Ophthalmology
基金
国家自然科学基金
关键词
人工晶状体
伪调节力
前房深度
瞳孔直径
Intraocular lens
Pseudoaccommodation
Anterior chamber depth
Pupil diameter
