The effect of defocus on the contrast and phase of the retinal image of a sinusoidal grating.

Abstract

The variation with defocus in the contrast and phase of the retinal image of a grating stimulus is computed from a knowledge of the measured wavefront aberration of individual eyes. Contrast or modulation transfer is generally lower than in the aberration-free, diffraction-limited case, even at a pupil size of 3 mm, and marked spatial phase shifts, which… (More)

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Cite this paper

@article{Walsh1989TheEO, title={The effect of defocus on the contrast and phase of the retinal image of a sinusoidal grating.}, author={Garrett Lyndon Walsh and William Neil Charman}, journal={Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians}, year={1989}, volume={9 4}, pages={398-404} }