Hyperacute optic neuritis in a patient with COVID-19 infection and vaccination: a case report

Background: As scientific knowledge continues to grow regarding coronavirus disease 2019 (COVID-19) infection, several neuro-ophthalmological manifestations have emerged, including rare reports of optic neuritis. Optic neuritis is an inflammatory demyelinating condition of the optic nerve that typically presents as subacute, unilateral vision loss and pain on eye movement. Several cases of COVID-19 infection and COVID-19 vaccination related cases of optic neuritis have been reported. We present a case of hyperacute, unilateral optic neuritis after both recent COVID-19 infection and subsequent booster vaccination. Case presentation: Within two hours after receiving her COVID-19 booster vaccination, a 58-year-old female began experiencing bilateral eye pain, worsened by eye movements. The patient had previously contracted a mild COVID-19 infection three weeks prior to receiving her booster vaccination, confirmed by a rapid antigen test. The pain persisted in her right eye for a week at which time she presented to an ophthalmology clinic. She denied any changes to her visual acuity. Neuroimaging revealed right optic nerve enhancement, and the patient was admitted to the hospital for a course of intravenous steroids, which quickly resolved her eye pain. Conclusion: To our knowledge, this is the first reported case of COVID-19 related optic neuritis following both COVID-19 infection and vaccination. High clinical suspicion is needed to make the appropriate diagnosis, as cases of COVID-19 related optic neuritis may exhibit mild presentations, as was the case with our patient.