Eyelid swelling after eating may be related to food allergies, mosquito bites, vision fatigue and other conditions. 1. Food allergy: If the patient belongs to the allergic body, during the meal, eating fish, shrimp, crab, mango and other allergy-prone food, it will lead to an allergic reaction in the body. In the eye skin swelling at the same time, may be accompanied by localized red rash, itching and other symptoms. 2. Mosquito bites: If you are bitten by mosquitoes while eating, you will be left with small bites in the eye area, resulting in swollen eyelids, which may be painful and itchy. 3. Vision fatigue: If you have been using your eyes for a long time, such as using electronic products for a long time, or not resting for a long time, it may cause your eyes to become swollen and sore. Swollen eyelids after eating may also be caused by other reasons, please consult a doctor in a timely manner, under the guidance of the doctor to carry out appropriate examinations, a clear diagnosis, active treatment or treatment.