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
Lisch nodules are seen in: March 2009 
Select and explain. 
A. Retinoblastoma, B. Neurofibromatosis, C. Retiniitis pigmentosa, D. Neuroblastoma
B: Neurofibromatosis
Answer: B: Neurofibromatosis 
Explanation: Ans. B: Neurofibromatosis