title: AMO array multifocal versus monofocal intraocular lenses: long-term follow-up.
abstract: OBJECTIVE
  To assess prospectively the visual outcomes of multifocal and monofocal intraocular lens (IOL) implantation in selected patients with a minimum follow-up of 18 months.
  
  
  METHODS
  Department of Ophthalmology, National Health Service (INSALUD). Puerta de Hierro University Clinic, Madrid, Spain.
  
  
  METHODS
  This prospective study comprised two groups of 50 eyes each: one with AMO Array multifocal IOLs and the other with monofocal IOLs. Main outcome measures were Snellen and Regan 96% distance visual acuities; Jaeger and decimal near acuities; Regan contrast sensitivity test at 96, 50, 25, and 11%; brightness acuity test (BAT) on distance acuity at Regan 96%; depth of focus measured with the Regan 96% distance test; defocusing from +3s to -4s; subjective evaluation of optical side effects.
  
  
  RESULTS
  The differences between groups in mean distance vision and BAT results were not statistically significant Contrast sensitivity results at 96 and 50% were similar, but there were significant differences of 0.94 and 1.14 lines on the 25 and 11% charts, respectively (P < .01). Near vision without addition in the multifocal group was significantly better and depth of focus significantly wider than in the monofocal group (P < .001).
  
  
  CONCLUSIONS
  With appropriate patient selection, the AMO Array IOL provided distance acuity and contrast sensitivity similar to that of the monofocal IOLs and excellent intermediate vision. Near vision, without spectacles, with the multifocal lens was functionally acceptable although short of refractive power for best acuity results.
authors.affiliation: Ophthalmology Department, Puerto de Hierro University Clinic, Madrid, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Vaquero-Ruano
authors.forename: J L
authors.initials: JL
authors.lastname: Encinas
authors.forename: I
authors.initials: I
authors.lastname: Millan
authors.forename: M
authors.initials: M
authors.lastname: Hijos
authors.forename: C
authors.initials: C
authors.lastname: Cajigal
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002387:Cataract Extraction; D015350:Contrast Sensitivity / Q000502:physiology; D003867:Depth Perception / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D019904:Polymethyl Methacrylate; D011446:Prospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*
chemical_list: D019904:Polymethyl Methacrylate