Advisory Committee Chair
Lawrence C Sincich
Advisory Committee Members
John M Laurent
Lei Liu
Document Type
Thesis
Date of Award
2019
Degree Name by School
Master of Science (MS) School of Optometry
Abstract
In human eyes, accomodation brings light rays into focus on the retina in order to achieve a clear images. The plane of best focus within the depth of the retina is thought to be within the photoreceptor layer, but pinpointing the exact focal position axially has not been determined. With help of adaptive optics aberration correction and its ability to have microscopic control of a retinal stimulus, we explored how sensitive human subjects are to defocus on the micron scale. We found that focal position can be reliably judged within 0.02 D, which is equivalent to about 6 microns in axial depth for a human eye.
Recommended Citation
Kanukuntla, Vasantha Kumari, "A Microfocal Effect In Photoreceptor Light Capture" (2019). All ETDs from UAB. 2104.
https://digitalcommons.library.uab.edu/etd-collection/2104