The patient’s right eye is particularly red in the morning, which may be caused by conjunctivitis, iridocyclitis, scleritis and so on. 1. Conjunctivitis: Conjunctivitis is mostly caused by pathogenic bacterial infections, physical and chemical factors, allergic reactions, etc. Under the stimulation of inflammation, patients may have conjunctival congestion, so it can be manifested as redness of the eyes. 2. Iridocyclitis: Iridocyclitis can be caused by pathogenic infection, immune dysfunction, trauma and other factors, patients with eye redness, eye pain, blurred vision, photophobia as the main symptoms, the condition is serious, but also cause patients to lose vision. 3. Scleritis: scleritis is usually caused by autoimmune factors and infectious factors, its main clinical manifestations for the sclera diffuse or limited congestion, patients can also have different degrees of eye pain and other discomforts, but also cause patients to get up in the morning the symptoms of the right eye redness. It is recommended that patients with obvious eye congestion should consult a doctor in time to evaluate their condition and follow the doctor’s instructions for treatment.