It is actually hypothesized that ischemia takes place in pial plexus and extends for the optic nerve, involving the centripetal blood supply which could possibly be influenced in the course of surgical interventions in shut proximity on the optic chiasm[fourteen], or immediate ischemia may perhaps come from tiny meningeal-based arteries https://login-pion78666543.total-blog.com/the-basic-principles-of-pion786-51243385