J Korean Ophthalmol Soc.  2000 Oct;41(10):2205-2210.

Periodic Biometry in Three Types of Posteriorly Implanted IOLs: PMMA, Silicone, and Acrylic Soft, by EAS-1000 Scheimpflug Photography

• Kim JS
• Shyn KH

Abstract

To compare any differences in the periodic biometric values (decentration, tilt and anterior chamber depth)and corrected visual acuity among PMMA, silicone, and acrylic IOLs, a total of 137 cataractous eyes of 108 patients undergoing IOL implant surgery were divided into 3 groups based on the type of IOL :group A -65 eyes of PMMA IOL (MZ60BD), group B -47 eyes of silicone IOL (SI30NB), and group C -25 eyes of Acrysof IOL (MA60BM). The biometric analyses of all study groups were quantified using EAS-1000 Scheimpflug camera.All eyes underwent EAS-1000 examination at 1, 3, and 6 months after surgery.Also best corrected visual acuity was examined at 1, 3, and 6 months.The anterior chamber increased at 1 month after surgery and no statistical differences were found among the three groups. Furthermore, the differences regarding both the position of the IOLs (decentration and tilting)and the final corrected visual acuity of three groups throughout the observation period were not statistically significant. In conclusion, as long as proper capsulorhexis was performed and the IOLs were placed accurately in the healthy capsular bags, changes of anterior chamber depth, decentration, tilt and corrected visual acuity were all found to be almost similar among any of the three IOL types.

Keyword

Periodic biometry; Intraocular lens; Scheimpflug photography; Visual acuity

MeSH Terms

Anterior Chamber
Biometry*
Capsulorhexis
Cataract
Humans
Lenses, Intraocular
Photography*
Polymethyl Methacrylate*
Silicones*
Visual Acuity
Polymethyl Methacrylate
Silicon
Silicones