摘要
目的评价Acrysof Toric人工晶状体植入术后屈光状态的改善以及晶状体在囊袋内的稳定性。方法选择2012-04至2014-02在我院眼科接受超声乳化白内障吸除联合Toric人工晶状体植入的白内障患者20例(28眼),均为规则性角膜散光且散光>1.00 DC,并完成3~8个月的随访。观察术眼术前眼轴、术前和术后裸眼视力、最佳矫正视力、术前预留球镜度和术后残余球镜度、术前角膜散光和预计残余散光、术后残余散光及人工晶状体偏转轴位。结果术后3~8个月,20眼(71%)裸眼视力≥0.6。7眼(21%)裸眼视力≥0.8。25眼(89%)最佳矫正视力≥0.8。术后3~8个月残余球镜度和IOL Master预留球镜度的误差范围在(-0.90^+0.85)DS,平均球镜度偏差为(0.46±0.23)DS。术后球镜度的误差与术前眼轴长度之间关系:Y=11.908x-231.65,R2=0.817,P<0.05。术前角膜散光平均为(1.84±0.55)DC,术后3~8个月残余散光为(0.18±0.11)DC,二者相比差异有统计学意义(P<0.05)。人工晶状体轴位与预定轴位相比偏移了0°~12°,平均轴位发生偏转为(3.96±3.46)°。结论 Acrysof Toric人工晶状体植入术后的残余球镜度和IOL Master预留球镜度存在一定的误差;术后球镜度误差与术前眼轴长度呈正相关,随眼轴的增加而增大;Acrysof Toric人工晶状体矫正规则性角膜散光误差小,具有良好的旋转稳定性。
Objective To evaluate the improvement of refractive status and the stability of the lens in the capsular pouch after carrying out Acrysof Toric intraocular lens implantation operation .Methods Twenty-eight eyes of 20 cataract patients from April 2012 to February 2014 were enrolled from the department of ophthalmology in our hospital .They are all regularity corneal astigmatism which was more than 1.00 diopter （D）.All patients underwent similar phacoemulsification combined with Toric IOLs implantation and were followed up at 3 to 8 months.The uncorrected visual acuity （UCVA）, best-corrected visual acuity （BCVA）, preoperative reserved spherical power and postoperative residual spherical power , preoperative corneal astigmatism , anticipated residual astigmatism , postop-erative residual astigmatism and intraocular lens （ IOL） axis deflection were detected and measured .Results Three to eight months following surgery, a total of twenty eyes （71%） showed 0.6 or better in UCVA.7 eyes （21%） was 0.8 or better in UCVA and twenty-five eyes （89%） achieved 0.8 or better in BCVA.The spherical error of postoperative residual and IOL Master reserved ranges from -0.90 D to＋0.85 D, and the deviation of spherical equivalent refraction is 0.46 ±0.23 D.The relations between the postopera-tive Spherical error and preoperative axial length is Y =11.908 x-231.65,R2 =0.817, P＆lt;0.05.The mean preoperative corneal astig-matism was （1.84 ±0.55） D, and there was statistical significance （P＆lt;0.05） compared with postoperative residual astigmatism （0.18 ±0.11） D after the surgery of three to eight months .Compared with predetermined axis , intraocular lens axis has shift from zero to twelve degrees, and the deflection degrees of the mean axis is 3.96 ±3.46.Conclusions After the surgery of the Acrysof Toric in-traocular lens implantation , the residual spherical powers and IOL Master reserved spherical powers has some error .And the error of the postoperative spherical equivalent was positively correlated with the preoperative axial length , which increases with the increasing axial length .As Acrysof Toric intraocular lens correction regularity corneal astigmatism error is small and has showed good rotational stability, it contributes to the correction of corneal astigmatism .
出处
《武警医学》
CAS
2015年第1期64-67,共4页
Medical Journal of the Chinese People's Armed Police Force
基金
国家自然科学基金(81271016)
作者简介
马化文，硕士在读，医师，E-mail：mahuawen2008@163．com
通讯作者：胡莲娜，E—mail：hulianna57@yahoo．com．cn
