There is no set number of days for how long the cornea needs to be wrapped in gauze after an injury and how quickly it heals. The cornea, which is the black part of the eye, is directly exposed to the surface of the body and is susceptible to traumatic injury. Rubbing the eye with force, or getting a foreign object in the eye may damage the cornea, while a sharp object that pierces the cornea may form a laceration of the cornea. Patients with corneal injuries need to go to the ophthalmology department of the hospital in a timely manner, and the doctor will clarify the severity of the injury by doing a slit-lamp microscopic examination, and then give targeted treatment. Patients may need to use gauze to wrap the eye after the injury, and the number of days of wrapping the eye is related to the recovery of the condition, and there is no fixed time limit, for minor corneal abrasions are generally healed within 24~48 hours, wrapping the eye for 1~2 days is enough, while serious corneal injuries need a longer period of time, until healed. Specific treatment is required under the guidance of a doctor.