You can’t get infected by looking into the eyes with red eye. Red eye is an acute conjunctival inflammatory reaction caused by a viral or bacterial infection and is highly contagious. Red eye is primarily transmitted by contact, from secretions from the patient’s eyes to the patient’s hands to the eyes of a healthy person or to objects contaminated by the patient’s eye secretions to the eyes of a healthy person. Anything used by the patient, including towels, handkerchiefs, washbasins, wash water, bedding, contain pathogenic bacteria, pathogenic bacteria can enter the eyes of healthy people through a variety of ways, so that red eye disease spread. For prevention, the following points should be done: 1. The public should pay attention to personal hygiene, especially to keep their hands clean and not to rub their eyes with their hands. 2. Towels, basins and handkerchiefs should be used separately for each person, and it is better to use running water to wash the face. 3. Medical staff inspection and treatment operations must be standardized, with 75% alcohol disinfection before contacting other patients, patient toiletries strictly isolated use. 3, after the disease, patients should consciously avoid entering the public places or participate in social activities. Only by doing the above points can we avoid the spread of red eye.