EyeSightTester lets you test another person's eyesight using the ophtalmic table method.
By pressing the '+'/'-' buttons you can start the test from 1/10 (the lowest eyesight level) and go through levels stepping by one tenth up to 10/10 (the highest eyesight level).
The 2 arrows button repeats the test for the current eyesight level.
The upper right corner of the screen suggests the correct distance at which to do the test. It varies according to the device's screen dimensions. For devices with screen dimensions greater or equal to 2.5 " it's 3 metres; it reduces for devices with screen dimensions less than 2.5".
To have your own eyesight tested, make yourself helped by a friend of yours that will keep the device that's running the app at the correct distance.
Tags: hoja mas usada para el examen de la vista