A 2.8-mm beam diameter system for retinal imaging with OCT and adaptive optics

Maddipatla Reddikumar; Joel Cervantes; Yukitoshi Otani; Barry Cense

doi:10.1117/12.2319383

24 April 2018 A 2.8-mm beam diameter system for retinal imaging with OCT and adaptive optics

Maddipatla Reddikumar, Joel Cervantes, Yukitoshi Otani, Barry Cense

Proceedings Volume 10711, Biomedical Imaging and Sensing Conference; 107110C (2018) https://doi.org/10.1117/12.2319383
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

A less-complex 2.8-mm beam diameter spectral domain optical coherence tomography system with an adaptive optics module presented. In this system a Shack-Hartmann wavefront sensor used for aberration sensing and the Deformable mirror used for aberration correction. We demonstrated the diffraction-limited resolution performance of this system on model retina. On the model, measured speckle size with present system is 2.2 times smaller than a 1.2-mm beam diameter OCT system. Further, on the model eye SNR gain of 6.7 dB was quantified with the present system over a 1.2-mm beam diameter OCT system. Relatively small size of 25 cm by 50 cm, less complexity, large field of view of the present system as compared to the conventional AO-OCT systems, would make it suitable for ophthalmic clinical applications.

Citation Download Citation

Maddipatla Reddikumar, Joel Cervantes, Yukitoshi Otani, and Barry Cense "A 2.8-mm beam diameter system for retinal imaging with OCT and adaptive optics", Proc. SPIE 10711, Biomedical Imaging and Sensing Conference, 107110C (24 April 2018); https://doi.org/10.1117/12.2319383

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