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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 1, Iss. 6 — Jun. 13, 2006

Adaptive optics system for investigation of the effect of the aberration dynamics of the human eye on steady-state accommodation control

Karen M. Hampson, Carl Paterson, Christopher Dainty, and Edward A. H. Mallen  »View Author Affiliations


JOSA A, Vol. 23, Issue 5, pp. 1082-1088 (2006)
http://dx.doi.org/10.1364/JOSAA.23.001082


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Abstract

It is now known that defocus is not the only aberration in the eye that exhibits dynamic behavior during fixation. It is currently unknown what effects, if any, the dynamics of these other aberrations have on steady-state accommodation control. We constructed an adaptive optics system to serve as a tool for future investigations in this area. The system has several design features of interest, including automated precompensation of defocus and astigmatism and a method to bypass a scanner used to reduce speckle. It also has the facility to measure the eye’s aberrations independent of the aberration manipulation device—a 37-actuator membrane deformable mirror. Coherence function analysis was used to assess the deformable mirror performance in terms of coupling between Zernike modes. Modes beyond third radial order showed severe coupling. Pilot data were collected on one subject to demonstrate the utility of this system in steady-state accommodation studies. The value of the system for future work in this area is discussed.

© 2006 Optical Society of America

OCIS Codes
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: August 19, 2005
Revised Manuscript: October 20, 2005
Manuscript Accepted: November 2, 2005

Virtual Issues
Vol. 1, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Karen M. Hampson, Carl Paterson, Christopher Dainty, and Edward A. H. Mallen, "Adaptive optics system for investigation of the effect of the aberration dynamics of the human eye on steady-state accommodation control," J. Opt. Soc. Am. A 23, 1082-1088 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-23-5-1082

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