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
Amsler grid is used in – 
Select and explain. 
A. Detecting maculopathy, B. Optic disc examination, C. Squint, D. Retinal examination
A: Detecting maculopathy
Answer: A: Detecting maculopathy 
Explanation: Macular function tests

While evaluating the retinal function, some tests are used s
These tests are :

Simple macular function tests

Two-point discrimination test (Cardboard test)
Maddox rod test
Coloured light test
Modified photostress test
Entoptic view test
Amsler grid test

Other tests

Blue field entoptoscopy
Laser interferometry
Potential acuity meter
Flying corpuscle test