Eye redness is related to excessive eye use, lack of sleep and other physiological factors, and generally does not require special treatment. It is also considered to be related to conjunctivitis, dry eye, etc., and can be removed with medication as prescribed by the doctor. 1. Physiological factors: some people in excessive eye use, sleep deprivation, etc., the eye is prone to redness. Usually there is no need for special treatment, and the redness will disappear on its own after paying attention to eye rest and ensuring sufficient sleep. 2. Conjunctivitis: patients with bacterial keratitis can be treated with antibiotics such as levofloxacin eye drops and tobramycin eye drops, and patients with viral conjunctivitis can be treated with antiviral medications such as ganciclovir eye drops and acyclovir eye drops. In the case of allergic conjunctivitis, artificial tears can be used to dilute allergens and reduce the irritation caused by allergens to the eyes. Patients with allergic conjunctivitis can also be treated with antihistamines such as emetine eye drops and levocabastine hydrochloride eye drops, and vasoconstrictors such as naphazoline and hydroxymetazoline. 3. Dry eye: dry eye patients can follow the doctor’s instructions with artificial tears or autologous serum to ease the eye redness, but also available to promote the secretion of tears medication, such as hairy fruit rutaecarpine, new strychnine and so on. Some patients can be prescribed with low concentration cyclosporine A eye drops, in order to reduce the ocular surface and lacrimal gland inflammation, improve tear secretion. There are many causes of eye redness, such as keratitis, glaucoma, iridocyclitis and so on. It is recommended that patients consult a regular hospital for examination in order to clarify the disease and then follow the doctor’s instructions for medication.