a tool utilized take a measurement of the optical acuteness of a person. It is made up of changing black and white lines positioned near one another- the player will need to conclude whether or not the input is made up of lines or is homogeneous. The point at which the player recognizes the lines to be homogeneous provides an indicator of optical keenness. Whenever the comparison of the lines is diversified, they can be utilized to test comparison hypersensitivity.
ACUITY GRATING: “Optometrists sometimes use acuity grating to determine the prescription needs of an individual.”