If a patient has severe redness in the eyes, in this case it is recommended that the patient must be examined in an ophthalmology clinic, as it is very likely that the condition is caused by an eye disease. In clinical practice, redness in the eyes is also called conjunctival congestion, and conjunctival congestion is a very important symptom of ophthalmic disease. If there is redness in the eyes, the patient needs to be considered to have an inflammatory reaction in the eyes, such as conjunctivitis, keratitis, sclerenitis or even iritis, which are common in clinical practice and can lead to very serious redness in the eyes. Once the type of eye disease is clearly identified after a comprehensive systemic examination, symptomatic treatment should be actively given, and the condition will improve after symptomatic treatment, and the serious red bloodshot will be improved until the condition is cured and the red bloodshot will disappear completely.