CN V (trigeminal nerve) sensory deficit?,”CN V contains sensory fibers in its 3 branches; the V3 (mandibular) branch also contains motor fibers. The V1 (ophthalmic) branch carries sensory fibers to the scalp, forehead, upper eyelid, conjunctiva, cornea, nose, and frontal sinuses. Damage to the V1 branch causes corneal anesthesia. Common causes of CN V dysfunction include tumor, trauma

CN V (trigeminal nerve) sensory deficit?,”CN V contains sensory fibers in its 3 branches; the V3 (mandibular) branch also contains motor fibers. The V1 (ophthalmic) branch carries sensory fibers to the scalp, forehead, upper eyelid, conjunctiva, cornea, nose, and frontal sinuses. Damage to the V1 branch causes corneal anesthesia. Common causes of CN V dysfunction include tumor, trauma

or prior herpes zoster infection.”