This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Development and clinical examination, Subject name: Ophthalmology
Amsler's grid is used to evaluate 
Select and explain. 
A. Central 10 degress of vision, B. Central 20 degrees of vision, C. Peripheral vision, D. Lens opacity
A: Central 10 degress of vision
Answer: A: Central 10 degress of vision 
Explanation: The Amsler grid is a tool that eye doctors use to detect vision problems resulting from damage to the macula (the central pa of the retina) or the optic nerve. The damage may be caused by macular degeneration or other eye diseases, so the Amsler grid is useful in detecting these problems. Reference: AK khurana 7th edition