This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
Not a symptom of angle closure glaucoma - 
Select and explain. 
A. Blurring of vision, B. Coloured Halos, C. Metamorphosia, D. Headache
C: Metamorphosia
Answer: C: Metamorphosia 
Explanation: Metamorphosia herein,patients perceive distoed images of the object . This results due to alteration in the ratinal contour caused by a raised patch of choroiditis. Ref :Ophthalmology A K Khurana 6th edition chapter-10 page no :162