Optic Nerve Crush Injury in Rodents to Study Retinal Ganglion Cell Neuroprotection and Regeneration.

Optic nerve crush injury is a useful model for studying the response of central nervous system neurons (CNS) to injury. A particular focus of this model has been to elucidate therapeutic factors in promoting neuroprotection and axon regeneration after injury. Here we describe a step-by-step protocol in accessing the optic nerve and creating a crush injury. This can be used to create a reproducible model to study the response of retinal ganglion cells (RGC), the main projection neurons of the eye, to injury.