Understanding visual perception in visual snow syndrome: a battery of psychophysical tests plus the 30-day clinical diary.

ABSTRACT: Patients with visual snow syndrome (VSS) experience uncountable flickering tiny dots in the entire visual field. Symptoms often persist over the years. Very little is known about altered perception in VSS. VSS is diagnosed based on subjective reports because there is no manual with objective measures. In this study, 20 patients with VSS and 17 healthy controls performed a battery of tests assessing visual acuity, contrast sensitivity, illusion perception, spatial-temporal vision, motion perception, visual attention, and selective attention. Surprisingly, except for one test, which is the honeycomb illusion, patients performed at the same level as controls. Patients reporting black and white visual snow performed better in the Stroop test compared to patients reporting other visual snow col

SUBMITTER: Garobbio S 

PROVIDER: S-EPMC11474241 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature