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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 pseudo-accommodative power in different age groups with intraocular lens implantation. Methods One hundred and twenty eyes (91 patients) were divided into four age groups, each group was randomly divided into Ⅰ, Ⅱ and Ⅲ subgroups, and three kinds of reserved refraction were adopted accordingly: (0 ± 0.25) D, ± 0.25) D, (-1.0 ± 0.25) D, phacoemulsification combined with foldable intraocular lens implantation, far, near vision, refractive status, pupil diameter, as far as the distance near the anterior chamber And other tests, and in correcting refractive errors based on the determination of pseudo-accommodative power, and in the absence of correction of refractive error near the point of adjustment of the distance. Follow-up time of more than 3 months. Results The average pseudo-accommodative power of 120 eyes was (2.08 ± 0.04) D in the Slataper standard method and (0.46 ± 0.03) D in the dynamic retinoscopy. Both test methods showed that with increasing age pseudo-adjustment force tends to decrease, with the increase of the number of refraction pseudo-adjustment force increased slightly. Pseudo-regulation was positively correlated with intraocular lens mobility (r = 0.307, P <0.01), but negatively correlated with pupil diameter and age (r = -0.454, P <0.01; r = -0.323, P <0.01) Weak refractive power has a weak correlation (r = 0.219, P <0.05). Conclusion Intraocular lens (IOL) has some pseudo-accommodative power. Idiopathic refractive power in different age groups may play a role in the pseudo-adjustment of intraocular lens. Appropriate selection of intraocular lens (IOL) should be personalized.