Pupils: Localization in Coma
 • Small, Reactive pupils: Metabolic coma.
 • Unilateral Fixed, dilated pupil : uncal herniation, PCOM aneurysm.
 • Bilateral, Large fixed pupils: Midbrain lesion or Death.
 • Bilateral, midposition, fixed pupils: Transtentorial herniation.
 • Pinpoint pupils: Pontine ICH, infarct, Opiate poisoning.
 • Horner's syndrome: sympathetic dysfunction.

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