title: [Quality of vision studied by comparative measurement of light scattering].
abstract: OBJECTIVE
  To assess quality of vision by measuring ocular light scattering with two platforms and comparing them to traditional tests, in healthy subjects and cataract patients.
  
  
  METHODS
  One hundred and sixty-eight eyes divided in two groups were examined by the same clinician in a prospective study (group 1, healthy controls, with a mean age of 31.22 [± 6.76]; and group 2, patients presenting with cataract, with a mean age of 60.36 [± 10.27]). Patients with ocular surface disease were excluded from this study. Each group responded to the VF-14 questionnaire, underwent an examination with lens opacities assessed by LOCS III and a measurement of ocular light scattering with two platforms: the OQAS (Visiometrics(©)) and the C-Quant (Oculus(©)). We analyzed correlations between indices of light scattering with the two platforms (respectively OSI and log(s)) and traditional quality of vision tests (VF-14 questionnaire and LOCS III).
  
  
  RESULTS
  Strong correlations were found between the OSI and LOCS III. Moderate correlations were found between the OSI and the VF-14 questionnaire, as well as between log(s), VF-14 questionnaire and LOCS III.
  
  
  CONCLUSIONS
  Indices of light scattering seems to be valid tools to assess quality of vision, thus lending themselves to routine testing of visual function.
authors: Service d'ophtalmologie, CHRU Morvan, 2, avenue Foch, 29200 Brest, France. Electronic address: v_rzemyk@hotmail.fr.
authors: V
authors: V
authors: Rzemyk
authors: Service d'ophtalmologie, CHRU Morvan, 2, avenue Foch, 29200 Brest, France.
authors: B
authors: B
authors: Cochener
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D002386:Cataract / Q000503:physiopathology*; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D006801:Humans; D008027:Light; D008875:Middle Aged; D011446:Prospective Studies; D012542:Scattering, Radiation; D014792:Visual Acuity / Q000502:physiology*; D055815:Young Adult
keywords: C-Quant; Cataract; Cataracte; Diffusion de lumière; Light scatter; OQAS; Quality of vision; Qualité de vision; Stray light