Radiation Induced Optic Neuropathy: A Retrospective Review of Treatments and Outcomes

Radiation induced optic neuropathy (RION),including both anterior radiation induced optic neuropathy (A-RION) and posterior radiation induced optic neuropathy (P-RION), have been recognized as a delayed complication after high doses of radiation therapy (RT) for head and neck cancers often leading to permanent vision loss