PMID: 20654213Jul 27, 2010Paper

The influence of preoperative corneal spherical aberration on relatively personalized implantation of aspheric intraocular lens

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
Hui-fang LianHui Song

Abstract

To analysis the feasibility of selectively targeting zero total postoperative spherical aberration by selecting the best fit aspheric intraocular lens (IOL) based on preoperative corneal spherical aberration of patients. It was a prospective case series study. The corneal spherical aberration (Z40) with 6 mm aperture of 57 eyes (46 patients) was measured with a iTrace Visual Function Analyzer 1 day before surgery, the target postoperative total spherical aberration was set at zero. Thus, for corneal spherical aberration<+0.100 microm, the Sofport Advanced Optic (AO)IOL(10 eyes) was selected; for corneal spherical aberration>+0.100 microm but if <+0.235 microm, the AcrySof IQ IOL (20 eyes) was selected; and for corneal spherical aberration>+0.235 microm, Tecnis ZA9003 IOL (27 eyes)was selected. Aspherical IOL was implanted after phacoemulsification through a clear-cornea, 3.2 mm incision without suture. Uncorrected visual acuity, best corrected visual acuity (BCVA), spherical aberration of the whole eye and internal optics (IOL) at 6 mm pupil diameter were examined at 3 months postoperatively. ANOVA and t-test were used to analyze the data at 3 months postoperatively. Total postoperative ocular spherical aberration at 6 mm pupil...Continue Reading

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