Fluid dynamic modeling and comparison of the intraocular pressure changes in eyes with SMILE and LASIK

Kuo-Jen Wang; Wai W. Wang; Che-Liang Tsai; I-Jong Wang

doi:10.1117/12.2318870

24 April 2018 Fluid dynamic modeling and comparison of the intraocular pressure changes in eyes with SMILE and LASIK

Kuo-Jen Wang, Wai W. Wang, Che-Liang Tsai, I-Jong Wang

Proceedings Volume 10711, Biomedical Imaging and Sensing Conference; 1071110 (2018) https://doi.org/10.1117/12.2318870
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

We developed an intraocular pressure (IOP) analytic model utilizing fluid dynamics (simulating air-puff), solid mechanics (simulating cornea structure deformation), and ray-tracing technique (simulating applanation detection) to simulate the air-puff noncontact tonometry (NCT) for post-SMILE and post-LASIK IOP measurement. This novel model is validated by a retrospective review of a database with 174,666 eyes undergoing LASIK surgery^1,2. Our novel analytic model is able to comprehensively analyze the components of IOP changes after SMILE and LASIK in addition to the corneal thickness. Based on our study, the factors affecting the IOP changes after SMILE and LASIK surgeries in order include the Young’s modulus of corneal stroma, geometric shape of ablated stroma, diameter of ablated zone, corneal thickness, and corneal curvature.

Citation Download Citation

Kuo-Jen Wang, Wai W. Wang, Che-Liang Tsai, and I-Jong Wang "Fluid dynamic modeling and comparison of the intraocular pressure changes in eyes with SMILE and LASIK", Proc. SPIE 10711, Biomedical Imaging and Sensing Conference, 1071110 (24 April 2018); https://doi.org/10.1117/12.2318870

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KEYWORDS

LASIK

Cornea

Tissues

Eye models

Fluid dynamics

Surgery

Spherical lenses

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