Spatial contrast sensitivity function in optic neuritis

Spatial contrast sensitivity function was determined in 53 patients with optic neuritis. Contrast sensitivity disorders were found in eyes that were not recovered, as well as in recovered and non-affected eyes.The high frequency cut-off of the contrast sensitivity function was obviously correlated with visual acuity. The correlation was less for medium and low spatial frequencies.There was a statistically significant relation between spatial contrast sensitivity abnormalities and subjective complaints, i.e., silhouette or foggy vision. These subjective complaints were often present despite a normal Snellen visual acuity.