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Corneal Neurotization: A Surgical Treatment for Neurotrophic Keratopathy.

C orneal neurotization is a surgical procedure for sensory reinnervation in neurotrophic keratopathy (1–9). Common causes of neurotrophic keratopathy include herpetic infections, chemical or thermal burns, diabetes, cranial nerve 5 injury, and chronic ocular surface disease or congenital causes (10). The severity of neurotrophic keratopathy is graded in 3 different stages, known as the Mackie classification. The goal of corneal neurotization is promote regrowth of corneal nerves to an insensate cornea (11).