This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea, Subject name: Ophthalmology
Enlarged corneal nerves may be seen in all of the following except 
Select and explain. 
A. Keratoconus, B. Herpes simplex keratitis, C. Leprosy, D. Neurofibromatosis
B: Herpes simplex keratitis
Answer: B: Herpes simplex keratitis 
Explanation: Ans. (b) Herpes simplex keratitisRef: Causes of Enlarged Corneal Nerves International Ophthalmology Clinics 4 (1): 12 - 23; Winter 2001 (Lippincott Williams & Wilkins) by kim, Stella K. M.D.: Dohlman, Claes H. M.D., Ph. D