Eye swelling and pain may be caused by glaucoma, but also to rule out other diseases. Glaucoma is a common disease in ophthalmology, when the onset of increased intraocular pressure will lead to swelling of the wall of the eyeball, pulling the rich sensory nerve fibers in the wall of the eyeball, which leads to eye distension and pain, and at this time the patient may also be accompanied by loss of vision, headache, dizziness, nausea, vomiting and other symptoms. However, there are other diseases that can also cause eye swelling and pain, such as visual fatigue and neuralgia. It is not possible to determine whether a glaucoma attack is the cause of eye swelling and pain based on the symptoms alone, but it is important to go to the ophthalmology department of the hospital for a timely examination to find out the cause of the problem. After a clear diagnosis, the cause of the problem should be addressed, and the symptoms should be eliminated with proper treatment under the guidance of a doctor.