This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Ophthalmology
Lisch nodule seen in- 
Select and explain. 
A. Sympathetic ophthalmitis, B. Neurofibromatosis, C. Chronic iridocyclitis, D. Trachoma
B: Neurofibromatosis
Answer: B: Neurofibromatosis 
Explanation: *Lisch nodules are the most common type of ocular involvement in NF-1. These nodules are melanocytic hamaomas, usually clear yellow to brown that appear as well- defined, dome-shaped elevations projecting from the surface of the iris. Ref: Harrison 18th/e p.2964