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
All are presentation of retinoblastoma except – 
Select and explain. 
A. Leucocoria, B. Squint, C. Cataract, D. Glaucoma
C: Cataract
Answer: C: Cataract 
Explanation: Leucocoria, squint (strabismus) and secondary glaucoma occur in retinoblastoma.