Corneal Wounds - The surface of the eye is covered by the cornea, which is a clear, skin-like tissue. Much like skin, the cornea can be injured. Lacerations (cuts), punctures, and ulcers are all quite common in dogs. Trauma to the eye is often to blame, like when a dog runs through tall grass and is poked in the eye. In other cases, other problems such as poor tear production or abnormal anatomy can put a dog at risk for corneal damage. A dog with a corneal wound will rub the affected eye and squint due to pain. The eye may also appear red and have excessive drainage. Treatment involves prevention or treatment of infections with antibiotic eye drops or ointments, managing pain, or simply giving the cornea time to heal. In severe cases of corneal wounds, surgery or other treatments may be needed to protect or repair the cornea.