Congestion of the white eyeball of the right eye may be caused by the following reasons: conjunctivitis, iridocyclitis, keratitis, acute glaucoma and so on. 1. Conjunctivitis: there will be congestion of the white eyeball, accompanied by an increase in secretion. If it is bacterial conjunctivitis, the secretion will be yellowish-purulent, and if it is viral conjunctivitis, the secretion will be plasma-like. 2. Iridocyclitis: In addition to leukocoronary congestion, patients may also experience photophobia, eye pain, blurred vision, etc. 3. Keratitis: the patient presents with white eyeball congestion, accompanied by photophobia, tearing and blurred vision. 4. Acute glaucoma: manifested as mixed congestion of the white eyeballs, the patient will also have eye swelling, headache, even nausea, vomiting, and vision will be severely reduced. If the right eye is congested and cannot be relieved by rest, the patient should go to the hospital in time to determine the cause of the congestion and follow the doctor’s instructions for treatment.