Vision changes and nervous system problems

The first symptom of a nervous system problem is often a change in how or what you see.

Double vision (diplopia), blurred vision, and abnormal vision with blind spots (scotomas) can be symptoms of migraine headaches or multiple sclerosis or can occur after a head injury. Double vision is common in brain tumors that involve the brain stem.

Sudden, partial, or total loss of vision can be a symptom of a loss of blood supply to the area of the brain that controls vision. It also can be a sign of a sudden blockage in the blood vessel that supplies blood to the eye. Visual changes are one of many possible symptoms of a stroke. Temporary loss of vision can also be a symptom of a transient ischemic attack (TIA).

Sudden vision loss in one or both eyes requires immediate medical attention.