Corneal ulcer: A corneal ulcer is an open

A corneal ulcer is an open sore on the cornea that can result from infection, injury, or dry eye. Learn how to prevent, diagnose, and treat corneal ulcers from the American Academy of Ophthalmology. Learn about the different stages of corneal ulcer , its symptoms, causes, and treatment options. Understand how to manage and prevent corneal ulcers effectively. A corneal ulcer is a corneal epithelial defect with underlying inflammation usually due to invasion by bacteria, fungi, viruses, or Acanthamoeba (See also Introduction to Corneal Disorders.) Etiology of Corneal Ulcer Corneal ulcers have many causes (see table Causes of Corneal Ulcers ). Herpes simplex keratitis is discussed separately. A corneal ulcer is an open sore on your cornea that can be caused by a virus or bacterial infection. Learn more about the causes, risk factors, symptoms, diagnosis, treatment, prevention, and ...