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[Multifocal implants of 3 optic zones: optical performance and clinical functional results]
Y Lachkar1, F Phung, D Bremond-Gignac
1Hôpital Robert-Debré, Paris.
Purpose:
Evaluation of multifocal IOL (three optical zones).
Methods:
Twenty patients were implanted. Main outcome measures were: uncorrected and best corrected distance and near acuity, brigthness acuity test, contrast acuity with differents methods: Pelli-Robson Chart, Gradual System, and spatial visual integration (SVI).
Results:
Uncorrected visual acuity was restored in 94% of cases. Contrast sensitivity was preserved with the Pelli-Robson chart test but a loss of contrast sensitivity was found with the multifocal IOL with the Gradual system and the SVI in comparison with monofocal IOL.
Conclusion:
Multifocal IOL (three optical zones) allows a good restoration of both near and far visual acuity but a decrease in contrast sensitivity was detected.