不同年龄组植入预留屈光度数人工晶体眼术后伪调节力的比较  

The comparison of postoperative pseudo-accommodation in pseudophakic eyes after IOL implantation with predictive refraction for different age groups

作　　者：童颖[1] 张丰菊[1] 张洪沛[2] 

机构地区：[1]大连医科大学附属第一医院眼科,大连研究生现在116011 [2]大连市第二人民医院眼科

出　　处：《中国实用眼科杂志》2005年第5期519-523,共5页Chinese Journal of Practical Ophthalmology

摘　　要：目的研究不同年龄组预留屈光度数人工晶体眼的伪调节力。方法120只眼(91例患者)被分为四个年龄组,每组随机分为Ⅰ、Ⅱ、Ⅲ亚组,并相应采用三种预留屈光度数:(0±0.25)D、(-0.5±0.25)D、(-1.0±0.25)D,行超声乳化白内障吸除联合折叠式人工晶体植入术,术后进行远、近视力、屈光状态、瞳孔直径、视远、视近前房深度等检查,并在矫正屈光不正的基础上测定伪调节力,及在未矫正屈光不正的状况下测定近点调节距离。随访时间在3个月以上。结果Slataper视标法120只眼平均伪调节力为(2.08±0.04)D,动态检影法为(0.46±0.03)D。两种检查方法均表明随着年龄增加伪调节力有降低趋势,随预留屈光度数的增加伪调节力略有增加。伪调节与人工晶体移动度呈正相关(r=0.307,P<0.01),与瞳孔直径、年龄呈负相关(r=-0.454,P<0.01;r=-0.323,P<0.01),但与预留屈光度数有较弱的相关性(r=0.219,P<0.05)。结论人工晶体眼自身存在一定的伪调节力;不同年龄组预留屈光度数对人工晶体眼的伪调节的产生有一定的作用;人工晶体预留屈光度数的恰当选择应该趋向个性化。Objective To study the question about pseudo-accommodation in pseudophakic eyes after intraocular lens(IOL)implantation with predictive refraction for different age groups.Methods 120 eyes(91 patients)were divided into four age groups,each were randomly divided into Ⅰ,Ⅱ,and Ⅲ subgroups,and correspondingly used three types of predictive refraction:(0±0.25)D,(-0.5±0.25)D,and(-1.0±0.25)D.All patients underwent phacoemulsification with foldable IOL implantation.Postoperatively,the distant and near vision,refraction,pupil diameter,anterior chamber depth at distant and near were examined.When the correcting lenses were worn,their powers of pseudo-accommodation were measured.When the correcting lenses were not worn,the pseudo-accommodative distance at near point also were measured.The follow-up time was more than 3 months.Results The mean pseudo-accommodative power in 120 pseudophakic eyes was(2.08±0.04)D by slataper′s method,and(0.46±0.03)D by dynamic retinoscopy.Both the methods indicated that the powers of pseudo-accommodation gradually diminished with age and slightly grew with the increase of predictive refraction.The pseudo-accommodation was positively correlated with IOL movement(r=0.307,P<0.01),while negatively correlated with pupil diameter and age(r=-0.454,P<0.01;r=-0.323,P<0.01).But more weakly correlation was found between the pseudo-accommodation and predictive refraction(r=0.219,P<0.05).Conclusions There is a certain power of pseudo-accommodation in pseudophakic eye selves.For different age groups predictive refraction also has a certain effect on the product of pseudo-accommodation in pseudophakic eyes.Appropriate selection for predictive refraction power of IOL should be customized.

关 键 词：年龄 植入人工晶体眼术 预留屈光度数 伪调节力 超声乳化白内障吸除术 

分 类 号：R779.6[医药卫生—眼科]