June 2013
Volume 54, Issue 15
ARVO Annual Meeting Abstract  |   June 2013
Influence of glare light on contrast sensitivity through absorptive lenses
Author Affiliations & Notes
  • Hiroshi Uozato
    Ophthalmology/Visual Science, Kitasato Univ Grad Sch of Med Sci, Sagamihara, Japan
    Orthoptics and Visual Science, Kitasato University School of Allied Health Sciences, Sagamihara, Japan
  • Masatsugu Kanazawa
    Ophthalmology/Visual Science, Kitasato Univ Grad Sch of Med Sci, Sagamihara, Japan
  • Footnotes
    Commercial Relationships Hiroshi Uozato, None; Masatsugu Kanazawa, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 584. doi:
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      Hiroshi Uozato, Masatsugu Kanazawa; Influence of glare light on contrast sensitivity through absorptive lenses. Invest. Ophthalmol. Vis. Sci. 2013;54(15):584.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose: To investigate the influence of glare light in peripheral visual field on the contrast sensitivity (CS) through absorptive lenses under photopic and mesopic vision.

Methods: The subjects were 13 healthy volunteers and accepted CS measurement. Its measurement was performed to use a contrast glare tester, CGT-2000 (TAKAGI SEIKO), under photopic (background brightness: 100 cd/m2) and mesopic vision (background brightness: 10 cd/m2). Intensities of glare light which was indicated on 12° were glare M (brightness: 40,000 cd/m2) or glare H (brightness: 100,000 cd/m2). Binocular CS without glare light was compared with glare M and glare H. The effect of absorptive lenses was analyzed for wavelength component: cone’s peak wavelength value through absorptive lenses. We defined S-, M- and L- cone’s peak wavelength value as S-, M- and L- wavelength components and calculated correlation coefficients between contrast sensitivity and wavelength components. Absorptive lenses were RETINEX (HOYA, CO., JAPAN) with 5 colors: Orange - Brown (OB: luminous transmittance (LT), 12%), Orange (OR: LT, 49%), Red (RE: LT, 33%), Yellow (YE: LT, 77%), Yellow - Brown (YB: LT, 29%).

Results: Compared with CS without glare light, there was no change between CS with glare light under photopic vision. CS, however, decreased with glare H under mesopic vision (ANOVA, Scheffé, p < 0.05). In the analysis of a correlation coefficient, L and M wavelength components effectively contribute to contrast sensitivity under photopic vision. Correlation coefficients of each wavelength component showed almost the same values under mesopic.

Conclusions: We suggest that binocular CS decreases in the case of the highest intensity of glare light in peripheral visual field under mesopic vision. Absorptive lenses are especially useful in daylight because color lenses which absorb short-wavelength hardly affect CS under photopic vision.

Keywords: 478 contrast sensitivity • 754 visual acuity • 630 optical properties  

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