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How will examining the eyes help a doctor treat a coma?

If the doctor has accurate information about pupil size and any eye condition, like glaucoma, the person in a coma has, an eye exam may help the doctor rule out or confirm the cause of the coma. How the eyes react to light will help the doctor determine the extent of brain damage. If the pupil does not constrict but remains dilated, there may be a large mass causing the brain damage. If the pupil reacts to light even though a person is in a deep coma, then a mass is not likely.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.