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What is Pulfrich effect is seen in - and explain in detail?
Answer- A. Multiple sclerosisThe Pulfrich effect is a sign of optic neuritis seen in patients with Multiple sclerosis.The Pulfrich effect is a psychophysical percept wherein a two dimensional lateral motion of an object in the fietd of view is interpretd by the visual coex as having a depth component (three dimensional), due to a relative difference in signal timings between the two eyes.