Corneal Biomechanics After Intrastromal Ring Surgery: Optomechanical In Silico Assessment.

ABSTRACT:

Purpose

To provide a biomechanical framework to better understand the postsurgical optomechanical behavior of the cornea after ring implantation.

Methods

Calibrated in silico models were used to determine the corneal shape and stresses after ring implantation. After mechanical simulations, geometric ray-tracing was used to determine the change in spherical equivalent. The effect of the surgical procedure, circadian variation of intraocular pressure, or the biomechanical weakening introduced by keratoconus (KC) were evaluated for each intrastromal ring.

Results

Models predicted the postsurgical optomechanical response of the cornea at a population level. The localized mechanical effect of the additional intrastromal volume introduced by the implants (size and diameter)

SUBMITTER: Ariza-Gracia MA 

PROVIDER: S-EPMC7585389 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature