How do eyes swell for no reason?

Eyelid swelling, more common in the following cases: 1, stye, also known as hordeitis, patients often manifested as eyelid local redness, hot pain, need to use local antibiotic eye ointment, if necessary, oral antibiotic treatment.2, allergic eyelid dermatitis, contact with certain cosmetics or other allergens, leading to eyelid edema, sometimes accompanied by eye itching discomfort, can be local cold compress, eyelid application tobramycin dexamethasone eye ointment, severe allergies, need oral anti-allergic drug treatment. 3, renal dysfunction, water metabolism disorders, serious will lead to eyelid edema, need nephrology diagnosis and treatment.4, lacrimal gland prolapse patients, eyelids, especially lacrimal gland swelling, can touch the prolapsed lacrimal gland tissue, serious need to do lacrimal gland prolapse correction operation.5, crying before bed or drinking a lot of water, will also lead to eye edema. Usually pay attention to light diet, do not eat spicy stimulating food, can eat more heat, eyesight food, such as carrots, tomatoes, wolfberry and so on.