The pain and swelling of the patient’s right eye may be related to physiological factors, or it may be caused by trauma to the right eye or right blepharitis. 1. Physiological factors: If patients stay up too late for a long time and use their eyes excessively, it may cause discomfort symptoms such as grinding pain and swelling of the right eye, and also dry eyes, tearing and other discomforts. 2. Right eye trauma: If the patient’s right eye is accidentally hit or hit by external forces, resulting in trauma to the right eye, the patient may experience pain and swelling in the right eye, which may also be accompanied by localized bruising, tearing and other discomforts. 3. Right blepharitis: If the patient’s right eye suffers from blepharitis, resulting in localized congestion, pain, swelling and other symptoms, the patient may also be accompanied by foreign body sensation, photophobia, tearing and other discomforts. 4. Acute attack of glaucoma in the right eye: If the patient suffers from an acute attack of glaucoma, resulting in increased intraocular pressure in the right eye, the patient’s right eye can be caused by pain, swelling and other discomforts, which can also be accompanied by blurred vision, photophobia and other discomforts. It is recommended that patients with significant eye pain and swelling should seek timely medical attention to assess their condition and receive treatment under the guidance of a doctor.