Miosis Decision Tree

Compare the causes of pinpoint pupils—opioid overdose, organophosphate poisoning, pontine hemorrhage, Horner syndrome, clonidine, eye drops, and Argyll Robertson pupils—and a second tab explains the ice-water caloric test of brainstem eye reflexes. Click the answer choices to change the diagnosis clue, and switch tabs to see how eye movements should look in awake versus comatose patients.