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Proceedings Paper

Fluid dynamic modeling and comparison of the intraocular pressure changes in eyes with SMILE and LASIK
Author(s): Kuo-Jen Wang; Wai W. Wang; Che-Liang Tsai; I-Jong Wang
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Paper 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 surgery1,2. 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.

Paper Details

Date Published: 24 April 2018
PDF: 5 pages
Proc. SPIE 10711, Biomedical Imaging and Sensing Conference, 1071110 (24 April 2018); doi: 10.1117/12.2318870
Show Author Affiliations
Kuo-Jen Wang, Crystalvue Medical Corp. (Taiwan)
Wai W. Wang, Crystalvue Medical Corp. (Taiwan)
Che-Liang Tsai, Crystalvue Medical Corp. (Taiwan)
I-Jong Wang, National Taiwan Univ. Hospital (Taiwan)

Published in SPIE Proceedings Vol. 10711:
Biomedical Imaging and Sensing Conference
Toyohiko Yatagai; Yoshihisa Aizu; Osamu Matoba; Yasuhiro Awatsuji; Yuan Luo, Editor(s)

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