Key Clinical Message:
Owing to autoantibody production and thrombophilic disorders in COVID-19, physicians must have low threshold to investigate secondary IIH and demyelinating disorders in patients with headache and decreased vision following recent COVID-19 infection.
Keywords:  Coronavirus; SARS-CoV-2; COVID-19; Neurological manifestations; NMOSD; Anti-MOG syndrome; Pseudotumor cerebri.