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
Argon Laser trabeculoplasty is done in – 
Select and explain. 
A. Open angle glaucoma, B. Secondary glaucoma, C. Angle recession glaucoma, D. Angle closure glaucoma
A: Open angle glaucoma
Answer: A: Open angle glaucoma 
Explanation: Argon or diode laser trabeculoplasty is indicated in POAG when TOP is uncontrolled by medical therapy or when patient is non-compliant to medical therapy.