Oculocardiac reflex (OCR): The ophthalmic division of the trigeminal nerve (afferent limb) is stimulated via the long and short ciliary nerves. Afferent impulses are transmitted to the gasserian ganglion and main trigeminal sensory nucleus. From there, they are relayed to the efferent (motor) nucleus of the vagus nerve. The efferent pathway includes the vagus nerve and the cardiac depressor nerve.
| Vassallo SA, Ferrari LR: Anesthesia for ophthalmology. In Coté CJ, Ryan JF, Todres ID, et al [eds]: A Practice of Anesthesia for Infants and Children, 2nd ed. Philadelphia, WB Saunders, 1993, p 325.

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