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
Painful loss of vision is seen in : 
Select and explain. 
A. Senile cataract, B. Primary open angle glaucoma, C. Primary angle closure glaucoma, D. Anterior uveitis
C: Primary angle closure glaucoma
Answer: C: Primary angle closure glaucoma 
Explanation: C i.e Primary angle closure glaucoma