This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
[{'content': 'Acanthamoeba keratitis is: March 2012 \nSelect and explain. \nA. Allergic reaction to tuberculoprotein, B. Seen in contact lenses users, C. Lesion of herpes zoster, D. Seen in congenital syphilis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans: B i.e. Seen in contact lenses users Keratitis Phylctenular keratitis is an allergic reaction to an endogenous allergen, commonly tuberculoprotein Acanthamoebic keratitis occurrence is frequently associated with wearing of soft contact lenses. It has also been seen to occur in non-contact lens wearers & may be related to swimming or bathing in contaminated water Larger discoid lesions of herpes zoster are known as 'nummular' keratitis Interstitial keratitis due to inherited syphilis most commonly affects children between the ages of 5 & 15 years", 'role': 'assistant'}]