Presentation
9 March 2023 Understanding the biomechanical behaviors of the perilimbal sclera and aqueous veins during intraocular pressure regulation (Conference Presentation)
Author Affiliations +
Abstract
Purposed at validating the hypothesis that overly stiff sclera undermines the passive and adaptive mechanisms of the aqueous outflow pathway in regulating IOP, we combined photoacoustic microscopy (PAM) and finite element analysis (FEA) technologies to resolve and quantify the strains in the aqueous veins and surrounding perilimbal sclera in human and porcine eyes at high resolution in 3D in our previous study. In this study, we introduced large dynamic range of scleral stiffness in intact porcine eyes by crosslinking and observed the correlations between the principal strains in sclera and aqueous veins during IOP elevations, and between the principal strains and the steady state IOP. The results showed strong correlations in both cases.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guan Xu, Linyu Ni, Wonsuk Kim, Alexus Warchock, Erik Krawczyk, John Riesterer, Nikhil Gandikota, Sayoko Moroi, and Alan Argento "Understanding the biomechanical behaviors of the perilimbal sclera and aqueous veins during intraocular pressure regulation (Conference Presentation)", Proc. SPIE PC12379, Photons Plus Ultrasound: Imaging and Sensing 2023, PC123791X (9 March 2023); https://doi.org/10.1117/12.2650393
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KEYWORDS
Sclera

Veins

Optical resolution

Photoacoustic microscopy

Finite element methods

Surgery

3D photoacoustic microscopy

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