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Lucie Sawides, Enrique Gambra, Daniel Pascual, Carlos Dorronsoro, Susana Marcos; Visual performance with real-life tasks under Adaptive-Optics ocular aberration correction. Journal of Vision 2010;10(5):19. doi: 10.1167/10.5.19.
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© 2017 Association for Research in Vision and Ophthalmology.
We measured the effect of the correction of the natural aberrations of the eye by means of adaptive optics on the subject's performance on three different visual tasks: subjective sharpness assessment of natural images, familiar face recognition, and facial expression recognition. Images were presented through a dedicated psychophysical channel and viewed through an electromagnetic deformable mirror. Experiments were performed on 17 normal subjects. Ocular aberrations (astigmatism and higher order aberrations) were reduced on average from 0.366 ± 0.154 to 0.101 ± 0.055 μm for a 5-mm pupil diameter. On average, subjects considered to be sharper 84 ± 14% of the images viewed under AO correction, and there was a significant correlation between the amount of corrected aberrations and the percentage of images that the subject considered sharper when observed under AO-corrected aberrations. In all eyes (except one), AO correction improved familiar face recognition, by a factor of ×1.13 ± 0.12 on average. However, AO correction did not improve systematically facial expression recognition.
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