You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Ansler grid test is for ? and explain in detail?
Ans. is 'b' i.e., Macular function Macular function tests While evaluating the retinal function, some tests are used specifically for macular function. These tests are : Simple macular function tests Two point discrimination test (Cardboard test) Modified photostress test Maddox rod test Coloured light est Entoptic view test Amster grid test Other tests Blue field entoptoscopy Laser interferometry Potential acuity meter Flying corpuscle test