Vision test

Estimate distance vision at 4 m

• Hold a bank card against the screen and match the outline to it
• Read the test from 4 m
• Keep both eyes open or cover one if you prefer
• Read each row aloud while someone else taps how many letters were right
• Use even lighting without reflections on the screen
• The test fills the screen in white and a phone shows it sideways
• Results are experimental estimates in tenths and not a clinically validated eye exam