The patient’s right eye is swollen and painful, which may be related to blepharitis, orbital cellulitis, and ocular trauma. 1. Blepharitis: commonly known as granuloma, is an acute purulent infection of the glands of the eyelids, often caused by Staphylococcus aureus, under the stimulation of inflammation, the patient may experience pain, redness and swelling of the eyelids and other uncomfortable symptoms. 2. Orbital cellulitis: When bacterial infection causes orbital cellulitis, patients may experience pain, redness, swelling and other discomforts of the whole eyelid, and the pain will be aggravated by pressing on the eyeballs, and patients may also suffer from the discomfort of limited eye movement. 3. Eye trauma: If the patient’s eyes are bumped or hit by eye trauma, the patient may experience pain and swelling in the eyes, as well as discomfort such as subcutaneous bruising of the eyelids. It is recommended that patients with obvious swelling and pain in the right eye should consult a doctor in time to assess their condition and under the guidance of the doctor to carry out regular treatment.