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
Severe pain in eye with loss of vision can be a manifestation of: March 2013 (h) 
Select and explain. 
A. Acute angle closure glaucoma, B. Open angle glaucoma, C. Vitreous hemorrhage, D. Retinal detachment
A: Acute angle closure glaucoma
Answer: A: Acute angle closure glaucoma 
Explanation: Ans. A i.e. Acute angle closure glaucoma