Eye pain is not necessarily due to high eye pressure. There are many reasons why eye pain may be due to high eye pressure. When a person’s eye pressure is high above 35-40 mmHg, some of the symptoms of eye distention and pain may occur. Eye pain may not always be caused by high intraocular pressure, there are many causes, such as wind outside people get lost in the eye, foreign bodies in the cornea or inverted eyelashes, will also eye pain. Eye pain can also occur when the eye is bruised or scratched by a tree branch, etc. There are also inflammation of the eye, such as keratitis, sclerenitis, uveitis, inflammation of the optic nerve, etc. Inflammation of the eye can also cause pain in the eye, and the eye can be painful even when it looks like there is nothing abnormal in its appearance. The cause may also be visual fatigue. Nowadays, in the information society, people look at their cell phones and computers too much and use their eyes too much, so visual fatigue can also cause eye pain.