Balint’s syndrome [Rudolph Balint, Hungarian neurologist, 1874–1929] , a group of visual symptoms characterized by simultaneous anosognosia and optic ataxia. The patient experiences nystagmus, or loss of control of eye movements, and the inability to perceive all parts of a scene simultaneously. The patient may begin to follow a moving object but lose it. The cause is bilateral disease of the parietotemporal areas of the brain.