A 3.4-mm beam diameter system for retinal imaging with OCT and adaptive optics

Maddipatla Reddikumar; Barry Cense

doi:10.1117/12.2275022

18 April 2017 A 3.4-mm beam diameter system for retinal imaging with OCT and adaptive optics

Maddipatla Reddikumar, Barry Cense

Proceedings Volume 10251, Biomedical Imaging and Sensing Conference; 102510U (2017) https://doi.org/10.1117/12.2275022
Event: SPIE Technologies and Applications of Structured Light, 2017, Yokohama, Japan

Abstract

We present an adaptive-optics optical coherence tomography (AO-OCT) system with 3.4-mm beam diameter. A deformable mirror is used for the correction of two radial Zernike orders (defocus, vertical and oblique astigmatism). The aberrations are corrected sequentially with a Shack-Hartmann wave-front sensor and the deformable mirror. This system fills a gap between a standard clinical 1.2-mm beam diameter OCT system and a 6-mm beam diameter AO-OCT system. We also present 8° by 8° en face OCT images from a patient with macular degeneration. This system has a 25 cm by 50 cm footprint, which makes it considerably smaller to conventional 6-mm beam diameter AO-OCT system. Because of its larger field of view and smaller size, it is likely to be useful in the ophthalmic clinics for high-resolution imaging of the human eye retina.

Citation Download Citation

Maddipatla Reddikumar and Barry Cense "A 3.4-mm beam diameter system for retinal imaging with OCT and adaptive optics", Proc. SPIE 10251, Biomedical Imaging and Sensing Conference, 102510U (18 April 2017); https://doi.org/10.1117/12.2275022

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