title: [Multifocal implants of 3 optic zones: optical performance and clinical functional results].
abstract: OBJECTIVE
  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.
  
  
  CONCLUSIONS
  Multifocal IOL (three optical zones) allows a good restoration of both near and far visual acuity but a decrease in contrast sensitivity was detected.
authors.affiliation: Hôpital Robert-Debré, Paris.
authors.forename: Y
authors.initials: Y
authors.lastname: Lachkar
authors.forename: F
authors.initials: F
authors.lastname: Phung
authors.forename: D
authors.initials: D
authors.lastname: Bremond-Gignac
authors.forename: D
authors.initials: D
authors.lastname: Aron-Rosa
authors.forename: C
authors.initials: C
authors.lastname: Corbé
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015350:Contrast Sensitivity; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D013997:Time Factors; D014792:Visual Acuity