Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Ocular dysmetria is a form of dysmetria that involves the constant under- or over-shooting of the eyes when attempting to focus gaze on something. Ocular dysmetria indicates lesions in the cerebellum, which is the brain region responsible for coordinating movement. It is a symptom of several neurological conditions including multiple sclerosis. It is a condition that can cause symptoms similar to sea sickness.