High-resolution retinal imaging through open-loop adaptive optics

Chao Li; Mingliang Xia; Dayu Li; QuanQuan Mu; Li Xuan

doi:10.1117/1.3466581

1 July 2010 High-resolution retinal imaging through open-loop adaptive optics

Chao Li, Mingliang Xia, Dayu Li, QuanQuan Mu, Li Xuan

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Journal of Biomedical Optics, Vol. 15, Issue 4, 046009 (July 2010). https://doi.org/10.1117/1.3466581

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.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Chao Li, Mingliang Xia, Dayu Li, QuanQuan Mu, and Li Xuan "High-resolution retinal imaging through open-loop adaptive optics," Journal of Biomedical Optics 15(4), 046009 (1 July 2010). https://doi.org/10.1117/1.3466581

Published: 1 July 2010

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