| Popis: |
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. |
