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.
- Q Why might a doctor squirt water into the ear of someone in a coma?
- Q What is the long-term prognosis for someone in a coma?
- Q How do doctors care for coma patients?
- Q How do medications treat coma?
- Q What are the symptoms of coma?
- Q Are there alternative treatments for coma?