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Journal of Biomedical Optics • Open Access

High-resolution retinal imaging through open-loop adaptive optics
Author(s): Chao Li; Mingliang Xia; Dayu Li; QuanQuan Mu; Li Xuan

Paper Abstract

Using the liquid crystal spatial light modulator (LC-SLM) as the wavefront corrector, an open-loop adaptive optics (AO) system for fundus imaging in vivo is constructed. Compared with the LC-SLM closed-loop AO system, the light energy efficiency is increased by a factor of 2, which is helpful for the safety of fundus illumination in vivo. In our experiment, the subjective accommodation method is used to precorrect the defocus aberration, and three subjects with different myopia 0, −3, and −5 D are tested. Although the residual wavefront error after correction cannot to detected, the fundus images adequately demonstrate that the imaging system reaches the resolution of a single photoreceptor cell through the open-loop correction. Without dilating and cyclopleging the eye, the continuous imaging for 8 s is recorded for one of the subjects.

Paper Details

Date Published: 1 July 2010
PDF: 6 pages
J. Biomed. Opt. 15(4) 046009 doi: 10.1117/1.3466581
Published in: Journal of Biomedical Optics Volume 15, Issue 4
Show Author Affiliations
Chao Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Mingliang Xia, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Dayu Li, Changchun Institute of Optics, Fine Mechanics and Physics (China)
QuanQuan Mu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Li Xuan, Changchun Institute of Optics, Fine Mechanics and Physics (China)


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