Visual snow is a vision disturbance that causes someone to permanently see flickering dots across their whole range of vision. The disturbances are seen whether the person's eyes are open or closed and stay constant over time. In severe cases visual snow can cause impaired vision and even legal blindness.

Can I go blind from visual snow?

They may experience sensitivity to light, sometimes severe, and night blindness. These difficulties can lead the patient to become socially withdrawn and isolated which does not help if they are experiencing depression.

Does Visual snow affect vision?

In addition to the static, or “snow”, affected individuals can experience additional visual symptoms such as visual images that persist or recur after the image has been removed (palinopsia); sensitivity to light (photophobia); visual effects originating from within the eye itself (entoptic phenomena) and impaired ...