Diagnosis: Sudden onset of the disease, the affected eyes are sandy, burning and painful, itchy, shy and photophobic, mucus and tears are sticky, the cell lids are red and swollen, the white eyes are red and red, or even the white eyes are red and swollen and elevated above the black eyes, with a lot of mucus. If the treatment is not timely, the black eyes may become opacified at the edge. The inner surface of the lid is red and red, and corn grains are clustered. In severe cases, a grayish-white pseudomembrane can be seen, which can be easily wiped away, but then grows again. The affected eyes are astringent, burning, itchy, photophobic, and sticky with mucus and tears. It may be accompanied by chills and fever and a stuffy, runny nose. The clinical features are eyelid edema, conjunctival congestion, copious plasma discharge, high burning and itching sensation, photophobia, and unbearable sneezing irritation, and drugged then follicle formation is more common. Clinical features The onset of the disease is rapid, with little or no contagion. Both eyes are often affected. The whole body may be accompanied by chills and fever, nasal congestion and runny nose. The eyelids are red and swollen, the white eyes are red and red, or even the white eyes are red and swollen and elevated above the black eyes, and the mucus is yellow and sticky. If not treated promptly, the black eyes may have starry cataracts at the edges, but it is easily cured. The inner surface of the lid is red and red, sometimes with a milky white pseudomembrane, which can be easily wiped away, but is reborn. There may be a history of significant allergies, such as allergies to seafood, medications, and cosmetics.