Heartbeat optical coherence elastography: using heartbeat to measure corneal biomechanical properties

Achuth Nair; Manmohan Singh; Salavat Aglyamov; Kirill V. Larin

doi:10.1117/12.2579108

5 March 2021 Heartbeat optical coherence elastography: using heartbeat to measure corneal biomechanical properties

Achuth Nair, Manmohan Singh, Salavat Aglyamov, Kirill V. Larin

Author Affiliations +

Proceedings Volume 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV; 116301U (2021) https://doi.org/10.1117/12.2579108
Event: SPIE BiOS, 2021, Online Only

Conference Poster

Abstract

Corneal biomechanical properties are useful for the diagnosis of ocular diseases and monitoring of therapeutic interventions. Elastography is one method of assessing corneal biomechanical properties but typically relies on an active source of displacement. Here, we present a passive elastography technique known as heartbeat optical coherence elastography (Hb-OCE), where corneal stiffness is quantified by measuring its response to the ocular pulse. The technique was performed before and after crosslinking, which stiffens the cornea. First, Hb-OCE was performed in situ to assess the feasibility of the technique. Next, the technique was performed in vivo, suggesting that Hb-OCE may be feasible for clinical assessment of corneal stiffness without the need for any contact or external excitation.

Citation Download Citation

Achuth Nair, Manmohan Singh, Salavat Aglyamov, and Kirill V. Larin "Heartbeat optical coherence elastography: using heartbeat to measure corneal biomechanical properties", Proc. SPIE 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV, 116301U (5 March 2021); https://doi.org/10.1117/12.2579108

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