Air puff-coupled multi-spot OCT for assessment of asymmetries in corneal biomechanics

Karol Karnowski; Jadwiga Milkiewicz; Angela Pachacz; Andrea Curatolo; Onur Cetinkaya; Rafal Pietruch; Piotr Ciacka; Ashkan Eliasy; Ahmed Abass; Ahmed Elsheikh; Susana Marcos; Maciej Wojtkowski

doi:10.1117/12.2609511

7 March 2022 Air puff-coupled multi-spot OCT for assessment of asymmetries in corneal biomechanics

Karol Karnowski, Jadwiga Milkiewicz, Angela Pachacz, Andrea Curatolo, Onur Cetinkaya, Rafal Pietruch, Piotr Ciacka, Ashkan Eliasy, Ahmed Abass, Ahmed Elsheikh, Susana Marcos, Maciej Wojtkowski

Author Affiliations +

Proceedings Volume PC11941, Ophthalmic Technologies XXXII; PC119410U (2022) https://doi.org/10.1117/12.2609511
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

The ability to perform multi-meridian, simultaneous OCT measurements of air-induced corneal deformation is expected to highly improve the accuracy of assessing corneal biomechanics. We propose a simplified method targeting 3-D deformation measurement that could be introduced to swept-source OCT systems. We utilize a spatial-depth-encoded multiplexing to provide a 9-spot measurement of the deformation. The method is promising for the assessment of corneal asymmetries and diagnosis of corneal pathologies such as keratoconus. We present in detail the system and key requirements to provide simultaneous 9-spot deformation measurement. Finally, results on porcine eyes ex vivo and human eye in vivo are presented.

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Citation Download Citation

Karol Karnowski, Jadwiga Milkiewicz, Angela Pachacz, Andrea Curatolo, Onur Cetinkaya, Rafal Pietruch, Piotr Ciacka, Ashkan Eliasy, Ahmed Abass, Ahmed Elsheikh, Susana Marcos, and Maciej Wojtkowski "Air puff-coupled multi-spot OCT for assessment of asymmetries in corneal biomechanics", Proc. SPIE PC11941, Ophthalmic Technologies XXXII, PC119410U (7 March 2022); https://doi.org/10.1117/12.2609511

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