Background glaucoma Shape Background glaucoma Shape Background glaucoma Shape
Grants > Pressure-Induced Axon Damage and Its Link to Glaucoma-Related Vision Loss Updated On: Ene. 21, 2025
National Glaucoma Research Grant

Pressure-Induced Axon Damage and Its Link to Glaucoma-Related Vision Loss

Protecting & Regenerating the Optic Nerve
Bingrui Wang, PhD

Principal Investigator

Bingrui Wang, PhD

University of Pittsburgh

Pittsburgh, PA, USA

About the Research Project

Program

National Glaucoma Research

Award Type

Postdoctoral Fellowship

Award Amount

$150,000

Active Dates

July 01, 2024 - June 30, 2026

Grant ID

G2024004F

Mentor(s)

Ian Sigal, PhD, University of Pittsburgh

Goals

Researchers aim to quantify the intraocular eye pressure (IOP)-related axonal insult and its correlation with chronic neural tissue loss in order to enable early-stage glaucoma prediction and develop tools to prevent vision loss.

Summary

Blindness in glaucoma is caused by damage to axons that carry visual information to the brain. Damage often starts in the back of the eye and is due to high eye pressure which mechanically deforms axons. However, the link between axon deformation and long-term damage is unclear. Using animal models, researchers will investigate axon deformation and its link to damage to understand glaucoma’s causes.

Unique and Innovative

This study will use the in vivo data from meticulously controlled experimental glaucoma (EG) models. By combining digital volume correlation and a novel axon-centric method, we will measure ONH deformations, estimate 3D axonal paths, and investigate the acute IOP-induced mechanical insult on axon level before axonal injury. These results will be compared with the neural tissue loss during EG development in the same nonhuman primates (NHP) eye. This project will establish a fundamental connection between biomechanics and glaucomatous optic neuropathy.

Foreseeable Benefits

Upon completion, this study will identify the specific type of mechanical insult to axons that best predicts neural tissue loss. This insight will allow the community to focus efforts on minimizing this specific insult.