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