The congestion and redness in the corners of the eyes of patients are usually caused by conjunctivitis, scleritis, eye trauma, glaucoma and other reasons. 1. Eye inflammation: Conjunctivitis is the most common cause of redness at the corner of the eye, which is usually triggered by inflammation caused by viral or bacterial pathogens infecting the conjunctival tissue. Scleritis is usually caused by autoimmune reaction, patients in the inflammation stimulation, can also appear limited eye congestion. 2. Eye trauma: eye trauma patients because of direct mechanical stimulation and lead to local vasodilatation, resulting in conjunctival congestion. 3. Glaucoma: When glaucoma patients have an acute attack, the intraocular pressure rises, and the patients may also have eye congestion, which may be accompanied by eye swelling and pain, nausea, vomiting and other uncomfortable symptoms. It is recommended that patients with obvious congestion in the corners of the eyes should consult a doctor in a timely manner to assess their condition and follow the doctor’s instructions for treatment.