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Corneal nerves distribution: Nerve fibers penetrate the corneal periphery at the limbus and approach toward the central cornea at the level of the anterior stroma while penetrating the Bowman’s membrane to create the sub-basal nerve plexus, at the level of the basal epithelial cells and basement membrane of the epithelium. Terminal branches from the sub-basal plexus pass anteriorly into the epithelial cell layers, terminating within or in between epithelial cells.
