Reading and Aberrations

Adaptive optics can be used in ophthalmic optics to both measure high order aberrations in the eye, and to produce high resolution images of the retina. Most work on looking at how high order aberration can affect vision has concentrated on basic tests of vision such as acuity. We have been looking at more complex tasks such reading. 

Plots of the wavefront of the right eye of patient LY taken with the Zywave aberrometer.with a) central fixation, b) central fixation but higher order aberrations only (defocus and astigmatism removed), c) central fixation higher order point spread function, d), e) and f) are the same but for 15° nasal fixation. These measurements can then be used for phase conjugation with an adaptive optics system to investigate off-axis aberration correction performance in the human eye.