Fig. 16. Fluorescence micrograph of section from inferior conjunctiva showing tyrosine hydroxylase (TH)-containing nerve fibers. Presence of TH indicates that sympathetic nerve fibers surround individual goblet cells. (Original magnification; × 600. Dartt DA, McCarthy DM, Mercer HJ et al: Localization of nerves adjacent to goblet cells in rat conjunctiva. Curr Eye Res 14:993, 1995)