How long the gauze covers the cornea after the removal of the foreign body depends on the patient’s specific situation. Generally, only 1-2 days of clean gauze cover is needed, and after removing the gauze, topical ophthalmic drugs are mainly used to promote corneal repair and prevent infection. After corneal foreign body removal surgery, patients need to cover their eyes with gauze to prevent infection, and the gauze can be removed if the patient’s corneal wound recovers. If the corneal foreign body is only damaged to the corneal epithelial layer, the gauze only needs to be covered for 1-2 days after the removal of the foreign body. However, if the foreign body is in the deeper layers of the cornea or is accompanied by secondary infection, the patient’s corneal tissue will take longer to recover, so the patient will need to be covered with gauze for a longer period of time, which may take about 1 week. It is recommended that patients after corneal foreign body removal follow the doctor’s instructions for care, have regular checkups, and seek prompt medical attention when discomfort occurs.