There are many causes of redness in the eyes. It may be caused by inflammation or allergy, or trauma, or inverted eyelashes, foreign body irritation, dry eyes and so on. Therefore, it is necessary to go to the hospital for timely examination, and after clarifying the cause of the disease, the symptomatic treatment, the redness of the eyes may gradually get better. If the redness is caused by conjunctivitis, it may be infectious conjunctivitis, which requires symptomatic anti-infective treatment, such as antibiotic eye drops, or antiviral eye drops. If it is allergic conjunctivitis, it needs to be treated with anti-allergic eye drops. If the redness in the eyes is caused by keratitis, most causes of keratitis are due to infections and need to be treated with anti-infectives. If the redness of the eyes is caused by various irritants such as eyelid impaction, conjunctival stones, foreign bodies in the conjunctival sac or corneal foreign bodies, the irritants need to be removed, such as removing the eyelashes, removing the stones or foreign bodies, etc. Once the irritants are eliminated, the redness of the eyes will gradually improve. If due to lack of sleep, eye fatigue, binocular vision fatigue, or dry eye, sometimes also appear red bloodshot manifestations, generally consider paying attention to rest, point to use artificial tears eye drops treatment and so on.