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Opt Lett. 2006 May 1;31(9):1268-70.

MEMS-based adaptive optics scanning laser ophthalmoscopy.

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  • 1School of Optometry, University of California, California 94720-2020, USA. yuhuazhang@berkeley.edu

Abstract

We have developed a compact, robust adaptive optics (AO) scanning laser ophthalmoscope using a microelectromechanical (MEMS) deformable mirror (DM). Facilitated with a Shack-Hartmann wavefront sensor, the MEMS-DM-based AO operates a closed-loop modal wave aberration correction for the human eye and reduces wave aberrations in most eyes to below 0.1 microm rms. Lateral resolution is enhanced, and images reveal a clear cone mosaic near the foveal center. The significant increase in throughput allows for a confocal pinhole whose diameter is less than the Airy disc of the collection lens, thereby fully exploiting the axial resolution capabilities of the system.

PMID:
16642081
[PubMed - indexed for MEDLINE]
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