Dennie-Morgan line

Double fold of the lower eyelid due to atopy

Dennie–Morgan line (also Dennie-Morgan infraorbital fold) is a feature on the lower eyelid occurring in atopy. It is a fold formed by swelling of the eyelid, usually present bilaterally. It cannot be used as a stand-alone diagnostic criteria, but may help in making the diagnosis in association with other symptoms.^[1]