Red eyes without pain and itchiness may be caused by prolonged eye use, or it may be caused by subconjunctival hemorrhage, acute hemorrhagic keratoconjunctivitis and so on.
1. Prolonged eye use: if you look at the cell phone or play the computer for a long time, it may lead to excessive eye fatigue, which will make the conjunctiva congested and edematous. At this time, the eyes will show no redness or pain.
2. Subconjunctival hemorrhage: subconjunctival hemorrhage may be caused by eye trauma, vascular lesions and other factors. The patient will have a sudden bright red blood clot under the conjunctiva, no pain, foreign body sensation and other discomforts. If the patient has subconjunctival hemorrhage, there will be red eyes without pain and itchy symptoms.
3. Acute hemorrhagic keratoconjunctivitis: Acute hemorrhagic keratoconjunctivitis may be caused by enterovirus, coxsackievirus and other pathogens. Patients will have bulbar conjunctival congestion, eyelid edema, tearing, photophobia and other manifestations. If the patient presents with acute hemorrhagic keratoconjunctivitis, it will be manifested as red eyes without pain and itching.
It is recommended that patients with red, itchy eyes need to consult a doctor in a timely manner, if it is caused by prolonged use of the eyes, there is no need for treatment. For diseases that cause red, itchy eyes, it is necessary to check the cause of the disease in a timely manner, to clarify the cause of the disease before treatment.