Abstract:Oculocardiac reflex is a phenomenon caused by traction applied to the extraocular muscles, or pressure on the globes. The afferent stimulus travels via the ophthalmic branch of cranial nerve V, and the efferent stimulus travels via cranial nerve X, which can cause severe bradycardia and potentially hypotension, atrioventricular block, ventricular ectopy, and rarely asystole. Oculocardiac reflex is different from vasovagal syncope which has another pathway, and is triggered by pain or emotional upset, that resu… Show more
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