This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea, Subject name: Ophthalmology
Afferent component of corneal reflex is mediated by 
Select and explain. 
A. Vagus nerve, B. Facial nerv, C. Trigeminal nerve, D. Glossopharyngeal nerve
C: Trigeminal nerve
Answer: C: Trigeminal nerve 
Explanation: Ans. (c) Trigeminal nerveRef: Fuller Neurological examination made easy 3/e, p. 102The afferent component of corneal reflex is mediated through the ophthalmic branch of the trigeminal nerve (Vth nerve).The efferent component is mediated through the facial nerve (VIIth nerve).Following corneal stimulation:* Failure of either side of face to contract = Nasociliary nerve lesion* Failure of only one side to contract = Facial nerve lesion.