Injury to the cornea can affect vision, and the extent to which injury to the cornea affects vision is related to the location of the injury and the size of the wound. If the patient’s injury is in the periphery, the internal tissues are not damaged, there is no wound or the wound is small, the vision is usually not affected to a great extent. If the injury is in the center of the cornea, the internal tissues of the eye are severely damaged, and the wound is large, vision is generally affected to a greater degree. The cornea is an important part of the eye and is located at the front of the eye where the black eyeball is. The cornea is transparent and forms an important part of the refractive medium, which plays an important role in the imaging of objects in the eye, so damage to the cornea can easily affect vision. It is recommended that patients who have injured their cornea should seek prompt medical examination and actively cooperate with their doctors to minimize the impact on their vision.