This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Types of Errors of Refraction, Subject name: Ophthalmology
Different refractive power between two eyes is known as? 
Select and explain. 
A. Combined astigmatism, B. Aniseikonia, C. Anisometropia, D. Ametropia
C: Anisometropia
Answer: C: Anisometropia 
Explanation: Ans. (c) AnsiometropiaRef: A.K. Khurana 6th ed. 144-45, Khurana 4th ed./ 38* Isometropia: Two eye with equal refraction* Anisometropia: two eye with unequal refraction of power >2.5D* Aniseikoinia: Difference in size/shape of image of >5% on visual cortex by retina.