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Proceedings Paper

Effects of adaptive optics on visual performance
Author(s): E, Dalimier; K. M. Hampson; J. C. Dainty
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Paper Abstract

Some results concerning the correction loop of an Adaptive Optics (AO) system for the eye are presented. This is part of a project aiming to study the effects of AO on visual performance, using psychophysical methods. The AO system used in the project is presented. It comprises a Shack-Hartmann sensor, which measures the light deformation after a double-pass in the eye, and two corrective blocks. A Badal optometer coupled with cylindrical lenses is used to remove the main refractive aberrations, while a deformable mirror deals with the remaining aberrations. This system can enable one to carry out psychophysical experiments as a stimulus is viewed by the subject through the same optics. A bimorph mirror has been tested in view of correcting ocular simulations, and recently implemented in the system. The experimental results, consistent with the simulations, yield to a residual root-mean-square wavefront deviation of about 0.06 microns over a 4.8 mm pupil, corresponding to a Strehl ratio of approximately 0.6.

Paper Details

Date Published: 1 June 2005
PDF: 9 pages
Proc. SPIE 5823, Opto-Ireland 2005: Imaging and Vision, (1 June 2005); doi: 10.1117/12.605145
Show Author Affiliations
E, Dalimier, National Univ. of Ireland/Galway (Ireland)
K. M. Hampson, Univ. of Bradford (United Kingdom)
J. C. Dainty, National Univ. of Ireland/Galway (Ireland)

Published in SPIE Proceedings Vol. 5823:
Opto-Ireland 2005: Imaging and Vision
Fionn D. Murtagh, Editor(s)

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