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
Not a risk factor for primary open angle glaucoma among the following is 
Select and explain. 
A. Hereditary, B. diabetes mellitus, C. Cigarette smoking, D. Hypermetropia
D: Hypermetropia
Answer: D: Hypermetropia 
Explanation: Myopia is a risk factor for primary open angle glaucoma, not Hypermetropia.