<prompt> Which organism does not invade intact cornea?PseudomonasN. meningitidisN. gonorrhoeaC. diphtherias  <response>: Ans. a PseudomonasRef: Yanoff 4e, p. 217Although disruption of the continuity of the epithelium is the most common event that allows the establishment of a corneal infection, a few organisms such as Corynebacterium diphtheria, jaemophilus aegypticus, Neisseria gonorrhoeae, Neisseria meningitides and Shigella and Listeria species can penetrate an intact epithelium. 