Purchase this article with an account.
C. Ortiz, J. R. Jiménez, F. Pérez-Ocón, I. Muñoz; Visual Quality Measurements in Subjects With Age-Related Macular Degeneration. Invest. Ophthalmol. Vis. Sci. 2008;49(13):989.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
To test two differents devices, an aberrometer and a device that evaluates visual quality based on double-pass technique in subjects with age-related macular degeneration and to compare these data with experimental results from psychophysical tests in order to evaluate visual performance.
Data on visual quality were taken from a WASCA aberrometer based on Hartmann-Shack sensor and from a double-pass instrument (OQAS, Optical Quality Analysis System) based on recording images of a point source after reflection in the retina and a double pass through ocular media. For visual performance we determined CSF (Contrast Sensitivity Function). Data were taken from fifty-three eyes of 35 subjects with age-related macular degeneration.
All ARMD-eyes had affected contrast sensitivity most severely in the medium and high spatial frecuency range (p<0.05). For five patients (with one healthy eye) the average Strehl Ratio diminished for ARMD-eyes demonstrating a great influence of ocular aberrations and scattering with significance at p<0.05 in all cases. Data on aberrometry also shown that higher-order aberrations were higher in the non-healthy eye (p<0.05).
ARMD-eyes showed a worse visual performance and this is correlated with data provided by objective data (aberrometer and double-pass technique)
This PDF is available to Subscribers Only