Adaptive optics ophthalmologic systems using dual deformable mirrors

S. M. Jones; S. Olivier; D. Chen; S. Joeres; S. Sadda; R. J. Zawadzki; J. S. Werner; D. T. Miller

doi:10.1117/12.711189

9 February 2007 Adaptive optics ophthalmologic systems using dual deformable mirrors

S. M. Jones, S. Olivier, D. Chen, S. Joeres, S. Sadda, R. J. Zawadzki, J. S. Werner, D. T. Miller

Proceedings Volume 6467, MEMS Adaptive Optics; 64670H (2007) https://doi.org/10.1117/12.711189
Event: MOEMS-MEMS 2007 Micro and Nanofabrication, 2007, San Jose, California, United States

Abstract

Adaptive Optics (AO) have been increasingly combined with a variety of ophthalmic instruments over the last decade to provide cellular-level, in-vivo images of the eye. The use of MEMS deformable mirrors in these instruments has recently been demonstrated to reduce system size and cost while improving performance. However, currently available MEMS mirrors lack the required range of motion for correcting large ocular aberrations, such as defocus and astigmatism. In order to address this problem, we have developed an AO system architecture that uses two deformable mirrors, in a woofer / tweeter arrangement, with a bimorph mirror as the woofer and a MEMS mirror as the tweeter. This setup provides several advantages, including extended aberration correction range, due to the large stroke of the bimorph mirror, high order aberration correction using the MEMS mirror, and additionally, the ability to 'focus' through the retina. This AO system architecture is currently being used in four instruments, including an Optical Coherence Tomography (OCT) system and a retinal flood-illuminated imaging system at the UC Davis Medical Center, a Scanning Laser Ophthalmoscope (SLO) at the Doheny Eye Institute, and an OCT system at Indiana University. The design, operation and evaluation of this type of AO system architecture will be presented.

Citation Download Citation

S. M. Jones, S. Olivier, D. Chen, S. Joeres, S. Sadda, R. J. Zawadzki, J. S. Werner, and D. T. Miller "Adaptive optics ophthalmologic systems using dual deformable mirrors", Proc. SPIE 6467, MEMS Adaptive Optics, 64670H (9 February 2007); https://doi.org/10.1117/12.711189

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