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
Peripheral iridectomy indicated in: 
Select and explain. 
A. Open angle glaucoma, B. Angle closure glaucoma, C. Malignant glaucoma, D. All
A: Open angle glaucoma
Answer: A: Open angle glaucoma 
Explanation: A i.e. Angle closure glaucoma