17 February 2017 Retinal imaging with adaptive optics full-field OCT
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Abstract
Adaptive optics full-filed OCT (FFOCT) with a transmissive liquid crystal spatial light modulator (LCSLM) as wavefront corrector is used without strict plane conjugation for low order aberrations corrections. We validated experimentally that FFOCT resolution is independent of aberrations and only reduce the signal level. A signal based sensorless algorithm was thus applied for wavefront distortion compensation. Image quality improvements by the wavefront sensorless control of the LCSLM were evaluated on in vitro samples. By replacing the FFOCT sample arm objective with an artificial eye used to train ophthalmologists, adaptive optics retinal imaging was achieved. In vivo experiments using a liquid lens to correct focus and astigmatism are underway.
Conference Presentation
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Peng Xiao, Mathias Fink, A. Claude Boccara, "Retinal imaging with adaptive optics full-field OCT", Proc. SPIE 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI, 100530K (17 February 2017); doi: 10.1117/12.2250012; https://doi.org/10.1117/12.2250012
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