This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
Organism invading intact corneal membrane is 
Select and explain. 
A. Staphylococcus, B. Streptococcus, C. Gonococcus, D. Pneumococcus
C: Gonococcus
Answer: C: Gonococcus 
Explanation: Intact corneal epithelium cannot be penetrated by any organism EXCEPT, Neisseria gonorrhea Neisseria meningitides Corynebacterium diphtheriea