The posterior section of the optic nerve is divided in to the intraorbital, intracanalicular, and intracranial areas. The blood supply to those many sections entail contributions from several branches and arterial resources; therefore, It's not vital that the pathology of PION be localized to any one artery or area. The https://login-pion78632109.jaiblogs.com/52968515/rumored-buzz-on-daftar-pion786