Open AccessDual wavefront sensing channel monocular adaptive optics system for accommodation studies
Author(s) -
Karen M. Hampson,
Sem Sem Chin,
Edward A. H. Mallen
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.018229
Subject(s) - deformable mirror , optics , adaptive optics , wavefront sensor , wavefront , accommodation , physics , speckle pattern , monocular , vergence (optics) , channel (broadcasting) , actuator , computer science , artificial intelligence , telecommunications
Manipulation of the eye's aberrations using adaptive optics (AO) has shown that optical imperfections can affect the dynamic accommodation response. A limitation of current system designs used for such studies is an inability to make direct measurements of the eye's aberrations during the experiment. We present an AO system which has a dual wavefront sensing channel. The corrective device is a 37-actuator piezoelectric deformable mirror. The measurements used to control the mirror, and direct measurements of the eye's aberrations, are captured on a single Shack-Hartmann sensor. Other features of the system include stroke amplification of the deformable mirror and a rotating diffuser to reduce speckle.We demonstrate the utility of the system by investigating the impact of aberration dynamics on the control of steady-state accommodation on four subjects.