This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Symptomatic Disturbances of Vision, Subject name: Ophthalmology
A patient has complaint of seeing coloured holoes in the evening and blurring of vision for last few days with normal IOP: 
Select and explain. 
A. Prodromal phase of acute angle closure glaucoma, B. Acute angle closure glaucoma, C. Chronic glaucoma, D. Epidemic dropsy
A: Prodromal phase of acute angle closure glaucoma
Answer: A: Prodromal phase of acute angle closure glaucoma 
Explanation: Ans. is 'a' i.e. Prodromal phase of acute angle closure glaucoma