Adaptive optics ophthalmologic systems using dual deformable mirrors

S. M. Jones, S. Olivier, D. Chen, S. Joeres, S. Sadda, Robert Zawadzki, John S Werner, D. T. Miller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6467
DOIs
StatePublished - 2007
EventMEMS Adaptive Optics - San Jose, CA, United States
Duration: Jan 24 2007Jan 25 2007

Other

OtherMEMS Adaptive Optics
CountryUnited States
CitySan Jose, CA
Period1/24/071/25/07

Keywords

  • Adaptive optics
  • AO
  • Dual deformable mirrors
  • Retinal focus

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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    Jones, S. M., Olivier, S., Chen, D., Joeres, S., Sadda, S., Zawadzki, R., Werner, J. S., & Miller, D. T. (2007). Adaptive optics ophthalmologic systems using dual deformable mirrors. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6467). [64670H] https://doi.org/10.1117/12.711189