title: [Influence of different multifocal intraocular lens concepts on retinal stray light parameters].
abstract: OBJECTIVE
  Multifocal intraocular lenses (MIOL) are known to induce various photic phenomena depending on the optical principle. The aim of this study was to investigate the correlation between stray light measurements performed with the C-Quant (Oculus, Germany) and the results of a subjective patient questionnaire.
  
  
  METHODS
  In this study three different MIOLs were compared: AMO ReZoom (refractive design, n=10), AMO ZM900 (diffractive design, n=10) and Oculentis Mplus (near segment design, n=10). Cataract and refractive patients were enrolled in the study. Functional results were evaluated at least 3 months postoperatively followed by stray light measurements and a subjective questionnaire.
  
  
  RESULTS
  Surgery was performed for all patients without complications. The three groups were matched for age, IOL power and corrected distance visual acuity (CDVA). Significantly different stray light (median) values log(s) were found (Kruskal-Wallis test, p<0.05): 1.12 log (refractive), 1.13 log (segment) and 1.28 log (diffractive). The subjective questionnaire did not show differences in glare perception but refractive MIOL patients noticed more halos surrounding light sources than the diffractive and segment MIOL patients.
  
  
  CONCLUSIONS
  Stray light and subjective photopic phenomena do not show any basic correlation. Measurements in patients with refractive MIOLs showed less stray light than near segment or diffractive MIOLs. However, refractive MIOLs induced more halos compared to the other groups analyzed.
authors.affiliation: International Vision Correction Research Centre, Universitäts- Augenklinik, Heidelberg.
authors.forename: A
authors.initials: A
authors.lastname: Ehmer
authors.forename: T M
authors.initials: TM
authors.lastname: Rabsilber
authors.forename: A
authors.initials: A
authors.lastname: Mannsfeld
authors.forename: M J
authors.initials: MJ
authors.lastname: Sanchez
authors.forename: M P
authors.initials: MP
authors.lastname: Holzer
authors.forename: G U
authors.initials: GU
authors.lastname: Auffarth
mesh_terms: D000328:Adult; D000368:Aged; D019544:Equipment Failure Analysis; D005260:Female; D019466:Glare; D006801:Humans; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008027:Light; D008297:Male; D008875:Middle Aged; D012164:Retinal Diseases / Q000175:diagnosis* / Q000209:etiology*; D012542:Scattering, Radiation; D016896:Treatment Outcome