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
Unequal eye power is known as – 
Select and explain. 
A. Anisometropia, B. Emmetropia, C. Ametropia, D. Astigmatism
A: Anisometropia
Answer: A: Anisometropia 
Explanation: None