Symptoms & Signs
Symptoms may include:
- Double vision when looking to one side (people who are blind in one eye cannot have double vision)
Diagnosis & Tests
Tests typically show that one eye has trouble looking to the side, while the other eye moves normally. An examination shows the eyes do not line up — either at rest, or when looking in the direction of the weak eye.
Your health care provider will do a complete examination to determine the possible effect on other parts of the nervous system. Depending on the suspected cause, you may need:
- Blood tests
- Head imaging study (such as an MRI or CT scan)
- Spinal tap (lumbar puncture)
You may need to be referred to a doctor who specializes in visual problems related to the nervous system (neuro-ophthalmologist).
Review Date : 12/21/2009
Reviewed By : Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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