To perform the test, remove your glasses and stand back 3 feet from the screen. Clover left eye with your left hand and look closely at the image, then repeat with the right eye.
If some lines appear greyer than others, you definitely have a vision problem. A comprehensive exam, performed by an optometrist is required.
The tests that we propose do not have a medical value and we remind you that only your optometrist can give a proper diagnostic.