title: Emergency keratoplasty in perforating corneal ulcers and ring abscess of cornea.
mesh_terms: D000038:Abscess / Q000601:surgery*; D003316:Corneal Diseases / Q000601:surgery*; D016039:Corneal Transplantation; D003320:Corneal Ulcer / Q000601:surgery*; D004927:Escherichia coli Infections / Q000601:surgery; D006801:Humans; D011552:Pseudomonas Infections / Q000601:surgery; D013203:Staphylococcal Infections / Q000601:surgery