Which is the Snellen chart used for?

Correct answer: To measure visual acuity

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What people think about it: 4 Comments
Timoteo
Timoteo
They should have explained what the numbers mean. 20/20 means that the patient can see at 20 ft what a normal person can see at 20 feet. That is, they have normal acuity. But if they have 20/40, they need to be at 20 ft what a normal person can see at 40 ft. They need corrective lenses.
Player #25874027
Player #25874027
Just had this question on a a re-run of “Who wants to be a Millionaire “ I think it’s worth £16000. Can I have my money please.
Mouth🤪
Mouth🤪
I have an eye condition so I know all about this.
Player Say what!?
Player Say what!?
Timoteo, Thanks for that very interesting info!