title: Influence of +3.00 D and +4.00 D near addition on functional outcomes of a refractive multifocal intraocular lens model.
abstract: OBJECTIVE
  To clinically evaluate different near additions (adds) (+3.00 diopters [D] and +4.00 D) of the M-flex 630F refractive multifocal intraocular lens (IOL).
  
  
  METHODS
  Departments of Ophthalmology, University of Heidelberg, Germany, and Lithuanian University of Health Sciences, Kaunas, Lithuania.
  
  
  METHODS
  Clinical prospective nonrandomized unmasked study.
  
  
  METHODS
  Preoperatively, cataract patients were assigned to receive bilateral +3.00 D IOLs, +4.00 D IOLs, or +3.00 D (dominant eye) and +4.00 D (nondominant eye) IOLs. Follow-up examinations were performed up to 6 months postoperatively and included refraction, visual acuity (near at 40 cm and distance), the defocus curve, contrast sensitivity, and a subjective questionnaire.
  
  
  RESULTS
  Fifty-two patients were enrolled. No significant differences were found in the visual acuity results (P>.05). Four to 6 months postoperatively, the following median uncorrected and corrected distance visual acuity, uncorrected and distance-corrected near visual acuity, and corrected near visual acuity (logMAR) were found in all patients: -0.08, -0.12, 0.20, 0.10, and 0.10. Ninety-eight percent of patients reported being satisfied. The highest near peak versus the biggest intermediate decline in the median monocular defocus curves comparing +3.00 D and +4.00 D multifocal IOLs (logMAR) were 0.16 at 40 cm versus 0.22 at 33 cm (P=.24) and 0.38 at 66 cm versus 0.54 at 50 cm (P<.01).
  
  
  CONCLUSIONS
  Compared with the +4.00 D add, the +3.00 D near add gave better intermediate results in the defocus curve without compromising distance or near visual acuity.
authors.affiliation: International Vision Correction Research Centre, Department of Ophthalmology, University of Heidelberg, Heidelberg, Germany. tanja.rabsilber@med.uni-heidelberg.de
authors.forename: Tanja M
authors.initials: TM
authors.lastname: Rabsilber
authors.forename: Paulius
authors.initials: P
authors.lastname: Rudalevicius
authors.forename: Vytautas
authors.initials: V
authors.lastname: Jasinskas
authors.forename: Mike P
authors.initials: MP
authors.lastname: Holzer
authors.forename: Gerd U
authors.initials: GU
authors.lastname: Auffarth
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019923:Capsulorhexis; D015350:Contrast Sensitivity / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*