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Eye Exams - Extraocular Muscle Function Testing

This test is an examination of the function of the eye muscles. A doctor observes the movement of the eyes in six specific directions.

This test is performed to evaluate any weakness or other problem in the extraocular muscles, which may result in double vision or rapid, uncontrolled eye movements.

If there are uncontrolled eye movements during the test, nystagmus is present.

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