"Optic perineuritis was first described by W Edmunds and JB Lawford in 1883 3,10."
"Additionally, patients may also have clinical features of concurrent optic neuritis (e.g. relative afferent pupillary defect, dyschromatopsia), orbital inflammation (e.g. external ophthalmoplegia, exophthalmos, ptosis), and/or intraocular inflammation (e.g. scleritis, episcleritis) 1-4."
"connective tissue disorders (e.g. systemic lupus erythematosus)"
"inflammatory bowel disease (e.g. Crohn disease)"
"paraneoplastic (e.g. anti-CRMP-5 optic neuropathy)"
"vasculitis (e.g. arteritic anterior ischaemic optic neuropathy of giant cell arteritis, granulomatosis with polyangiitis, Behçet disease)"
"viral infection (e.g. herpes simplex, herpes zoster 1)"
"medications (e.g. immune checkpoint inhibitor therapy)"