Palinopsia.

Palinopsia is an uncommon but important neuro-ophthalmic condition. It can present with a range of visual phenomena and may be misdiagnosed as migraine or a functional disorder. The list of possible causes is long and includes structural cerebral lesions. We present a clinical case to illustrate the condition before reviewing different palinoptic subtypes and discussing how these may help clinicians to narrow the differential diagnosis.