A 28-year-old patient complains of sensation of a foreign body under the eyelids, eyelid heaviness, dry eyes, and lacrimation, especially in the evening. Objectively, the edges of the eyelids are hyperemic and edematous, isolated small scales can be observed between the eyelashes, the conjunctiva of the eyelids and eyeball is unchanged, the optical media and fundus are normal. Visual acuity is 1.0. What is the most likely diagnosis in this case?