The main symptom of nystagmus is rapid eye movement that cannot be controlled. Usually the movement is side to side. It can also be up and down or circular. The movement can vary between slow and fast, and it usually happens in both eyes.
In addition to rapid eye movement, nystagmus symptoms include:
- sensitivity to light
- difficulty seeing in the dark
- vision problems
- holding the head in a turned or tilted position
- the feeling that the world is shaking