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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 1, Iss. 3 — Oct. 1, 2010
  • pp: 879–894

Effect of temporal location of correction of monochromatic aberrations on the dynamic accommodation response

Karen M. Hampson, Sem Sem Chin, and Edward A. H. Mallen  »View Author Affiliations


Biomedical Optics Express, Vol. 1, Issue 3, pp. 879-894 (2010)
http://dx.doi.org/10.1364/BOE.1.000879


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Abstract

Dynamic correction of monochromatic aberrations of the eye is known to affect the accommodation response to a step change in stimulus vergence. We used an adaptive optics system to determine how the temporal location of the correction affects the response. The system consists of a Shack-Hartmann sensor sampling at 20 Hz and a 37-actuator piezoelectric deformable mirror. An extra sensing channel allows for an independent measure of the accommodation level of the eye. The accommodation response of four subjects was measured during a +/− 0.5 D step change in stimulus vergence whilst aberrations were corrected at various time locations. We found that continued correction of aberrations after the step change decreased the gain for disaccommodation, but increased the gain for accommodation. These results could be explained based on the initial lag of accommodation to the stimulus and changes in the level of aberrations before and after the stimulus step change. Future considerations for investigations of the effect of monochromatic aberrations on the dynamic accommodation response are discussed.

© 2010 OSA

OCIS Codes
(330.7322) Vision, color, and visual optics : Visual optics, accommodation
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: July 13, 2010
Revised Manuscript: August 18, 2010
Manuscript Accepted: September 13, 2010
Published: September 14, 2010

Citation
Karen M. Hampson, Sem Sem Chin, and Edward A. H. Mallen, "Effect of temporal location of correction of monochromatic aberrations on the dynamic accommodation response," Biomed. Opt. Express 1, 879-894 (2010)
http://www.opticsinfobase.org/boe/abstract.cfm?URI=boe-1-3-879


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