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Ocular pain following corneal injury is frequently observed in clinic, but its management remains as therapeutic challenge. The innervation of the cornea is provided by sensitive neurons located in the ophthalmic branch of trigeminal ganglion (TG). We recently reported that increasing endogenous enkephalin levels reduced ocular pain in a opioid receptor‐mediated manner (Reaux‐Le Goazigo et al., 2019)...