PMID: 20654060Jul 27, 2010Paper

Study of clinical application of aberration-free aspheric intraocular lens

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
Xiajing TangPei-qing Chen

Abstract

To compare spherical aberration, visual quality and apparent accommodation between pseudophakic patients with an aberration-free aspheric intraocular lens (IOL) and patients with a spherical IOL. A prospective study of 130 consecutive cases (132 eyes) was conducted. All cataract patients underwent phacoemulsification were randomized to receive an aberration-free aspheric IOL (Akreos AO, Bausch & Lomb) or a spherical IOL (KS-1, Cannon Staar). Spherical aberration of total eye, best corrected visual acuity (BCVA), near visual acuity (NVA), contrast sensitivity, glare sensitivity and apparent accommodation were measured. Data were analyzed using chi-square test and independent t-test. The mean spherical aberration in eyes with a Tecnis IOL [(0.141 +/- 0.070) microm] was significantly lower than that of eyes with a spherical IOL [(0.210 +/- 0.108) microm; t = 4.365, P = 0.000]. In addition, Akreos AO IOL provided a better contrast sensitivity at 2.5 degrees visual angle (30.62 +/- 12.50 vs. 25.92 +/- 7.36; t = 2.606, P = 0.010), and improved glare sensitivity at 4.0 degrees (31.25 +/- 8.65 vs. 26.70 +/- 7.98; t = 3.116, P = 0.002), 2.5 degrees (26.35 +/- 8.72 vs. 22.43 +/- 7.35; t = 2.772, P = 0.006) and 1.6 degrees (12.35 +/- 4.01...Continue Reading

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