Compensating aberrations in Doppler holography of the human eye fundus through computed sub-aperture signal correlation

Zofia Bratasz; Julia Sverdlin; Olivier Martinache; Yohan Blazy; Benjamin Stern; Vivien Vasseur; Damien Gatinel M.D.; Vincent Borderie M.D.; Michael Atlan

doi:10.1117/12.3002926

13 March 2024 Compensating aberrations in Doppler holography of the human eye fundus through computed sub-aperture signal correlation

Zofia Bratasz, Julia Sverdlin, Olivier Martinache, Yohan Blazy, Benjamin Stern, Vivien Vasseur, Damien Gatinel M.D., Vincent Borderie M.D., Michael Atlan

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Proceedings Volume PC12824, Ophthalmic Technologies XXXIV; PC1282404 (2024) https://doi.org/10.1117/12.3002926
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

Laser Doppler holography is a technique developed to visualize blood vessels in human eye fundus and its dynamics. Quality of images obtained is compromised due to aberrations introduced by the anterior segment of the eye as well as by lenses used for viewing. As images calculated hold information about both amplitude and the phase of the field detected, the wavefront distortion can be estimated using the numerical Shack-Hartmann method in the off-line video rendering process. In result, resolution of images obtained is considerably increased and smaller blood vessels are revealed.

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Zofia Bratasz, Julia Sverdlin, Olivier Martinache, Yohan Blazy, Benjamin Stern, Vivien Vasseur, Damien Gatinel M.D., Vincent Borderie M.D., and Michael Atlan "Compensating aberrations in Doppler holography of the human eye fundus through computed sub-aperture signal correlation", Proc. SPIE PC12824, Ophthalmic Technologies XXXIV, PC1282404 (13 March 2024); https://doi.org/10.1117/12.3002926

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KEYWORDS

Doppler effect

Holography

Eye

Image segmentation

Wavefront aberrations

Data processing

Pupil aberrations

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