title: Removal of rust rings, comparing electric drill and hypodermic needle.
mesh_terms: D000328:Adult; D003315:Cornea / Q000601:surgery*; D003316:Corneal Diseases / Q000601:surgery*; D005129:Eye Foreign Bodies / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D013525:Surgical Instruments