Visual Impairment, Oscillopsia and Multiple Sclerosis

This study consists of two parts. The first part is a survey to examine vision-specific health-related quality of life in a cohort of patients with multiple sclerosis. We test visual impairment like visual acuity, visual field, colour discrimination, contrast sensitivity, eye movement. The aim of this part is to examine the association between responses to the quality of life scale and objective measures of visual impairment. The second part is an open controlled study, in which we measure motion detection threshold in MS patients with oscillopsia due to pendular nystagmus and in a group of control subjects. The objective of this part is to determine whether patients with pendular nystagmus develop adaptation to oscillopsia using increased threshold of motion detection. We plan to test the effect of visuo-motor rehabilitation on this threshold in patients with oscillopsia due to pendular nystagmus.