June 2020
Volume 61, Issue 7
Free
ARVO Annual Meeting Abstract  |   June 2020
Straylight in glaucomatous phakic and pseudophakic eyes
Author Affiliations & Notes
  • Lorenzo Scanferla
    Department of Ophthalmology, University Medical Center Groningen, Groningen, Netherlands
    Graduate School of Medical Sciences (Research School of Behavioral and Cognitive Neurosciences), University of Groningen, Groningen, Netherlands
  • Catarina A.R. João
    Department of Ophthalmology, University Medical Center Groningen, Groningen, Netherlands
    Graduate School of Medical Sciences (Research School of Behavioral and Cognitive Neurosciences), University of Groningen, Groningen, Netherlands
  • Luuk Franssen
    R&D, Johnson & Johnson Vision, Groningen, Netherlands
  • Marrie van der Mooren
    R&D, Johnson & Johnson Vision, Groningen, Netherlands
  • Nomdo M Jansonius
    Department of Ophthalmology, University Medical Center Groningen, Groningen, Netherlands
    Graduate School of Medical Sciences (Research School of Behavioral and Cognitive Neurosciences), University of Groningen, Groningen, Netherlands
  • Footnotes
    Commercial Relationships   Lorenzo Scanferla, None; Catarina João, None; Luuk Franssen, None; Marrie van der Mooren, None; Nomdo Jansonius, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2020, Vol.61, 3382. doi:
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    • Get Citation

      Lorenzo Scanferla, Catarina A.R. João, Luuk Franssen, Marrie van der Mooren, Nomdo M Jansonius; Straylight in glaucomatous phakic and pseudophakic eyes. Invest. Ophthalmol. Vis. Sci. 2020;61(7):3382.

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

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Abstract

Purpose : To quantify the amount of straylight in glaucomatous phakic and pseudophakic eyes, and to assess the impact of stimulus location on straylight outcome.

Methods : Straylight was measured in 53 age similar subjects (15 healthy phakic, 15 glaucoma phakic, 9 healthy pseudophakic and 14 glaucoma pseudophakic) using two versions of the C-Quant Straylight meter (Oculus, Wetzlar, Germany); the commercially available C-Quant with the glare stimulus at an effective angle of 7°, and a modified version with the glare stimulus at an effective angle of 2.5°. A generalized linear model was performed to investigate the impact of glaucoma, intraocular lens state and the angle of glare stimulus on straylight measurement.

Results : Straylight measured in eyes with glaucoma was found to be higher than what was measured in healthy groups (P<0.001), with the presence of pseudophakia further elevating straylight levels (P<0.001). For all subject groups, more straylight was reported by the adapted version of the C-Quant than the commercial C-Quant (P<0.001).

Conclusions : Subjects with glaucoma and pseudophakia report more straylight than their non-glaucomatous and phakic peers, respectively. The angle at which straylight is measured influences the test result, limiting interchangeability of devices.

This is a 2020 ARVO Annual Meeting abstract.

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