3 OPTIC ZONES MULTIFOCAL INTRAOCULAR-LENS - RESULTS AND OPTICAL-PERFORMANCE

Purpose Evaluation of multifocal IOL (three optical zones). Methods Tw enty patients were implanted. Main outcome measures were: uncorrected and best corrected distance and near acuity, brigthness acuity test, c ontrast acuity with differents methods: Pelli-Robson Chart, Gradual sy stem and spatial visual integration (SVI). Results Uncorrected visual acuity was restored in 94 % of cases. Contrast sensitivity was preserv ed with. the Pelli-Robson chart test but a loss of contrast sensitivit y was found with the multifocal IOL with the Gradual system and the SV I in comparison with monofocal IOL. Conclusion Multifocal IOL (three o ptical zones) allows a good restoration of both near and far visual ac uity but a decrease in contrast sensitivity was detected.