Visual snow syndrome (Q86667)

Visual snow syndrome is a neuro-ophthalmological disorder, diagnosis requiring a history of visual disturbances lasting more than 3 months characterised by dynamic, continuous, tiny dots in the entire visual field, in conjunction with two or more of the following: photophobia, palinopsia (moving or stationary), blue field entoptic phenomena and nyctalopia. It is frequently associated with other disturbances of central sensory processing, including migraine, tinnitus, vestibular dysfunction, migratory paraesthesia and dissociative symptoms such as depersonalization and derealization.