A free app for Android, by Fonlow.

This app displays optically precise optotypes of the tumbling E chart, and allows you to measure visual acuity in order to detect nearsightedness or myopia. You can use this app to check your own eyesight and help you maintain your vision health.

If you have been given a Tumbling E chart test by your doctor or optometrist, and you have no idea how to read it, this app is just the thing for you.

This app is developed for people who have been given the Tumbling E chart test by their doctors or optometrists.

The Tumbling E chart is a standard visual acuity test that is used to check the vision of patients. The results are used to make a diagnosis of nearsightedness, myopia, or farsightedness.

This app is used by doctors and optometrists to check the vision of their patients. It is a useful tool for these professionals to measure visual acuity in order to make a diagnosis and recommend treatment to their patients.