Computational Model of the Eye for Primary and Secondary Blast Trauma
Abstract
In the fifth year of the project, we focused on improving the computational model of the eye. The current eye model includes all important internal features of the eyes. The local thickness variations of important load-bearing ocular components (cornea and sclera) which are obtained based on published histological measurements have been included in our model. The findings of our simulations support experimental observations of injury to choroid, sclera, ciliary zonlues and ONH. The effect of local thickness variation have been investigated on the stress distribution, internal ocular pressure and estimated risk of injuries. We showed that using non uniform thickness for sclera-cornea shell changes the maximum von Mises stress in sclera, limbus and zonules of zinn. We have also improved our material model by adding a distributed fiber model to describe the anisotropic elastic behavior of the sclera and cornea based on published wide-angle X-ray scattering measurements of the anisotropic collagen structure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2015
- Accession Number
- ADA631916
Entities
People
- Bahram Notghi
- Rajneesh Bhardwaj
- Thao D. Nguyen
Organizations
- Johns Hopkins University