The term 20/20 vision refers to the distance from which people's vision is tested in relation to the size of the text that can be read from that distance. Calculate the quality of an individual's vision with information from a practicing optometrist in this free video on eye health.
Expert: James W. Kirkconnell
Contact: www.bec2020.com
Bio: Dr. James W. Kirkconnell graduated from the University of Houston College of Optometry in 1984.
Filmmaker: Dimitri LaBarge
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The term 20/20 vision refers to the distance from which people’s vision is tested in relation to the size of the text that can be read from that distance. Calculate the quality of an individual’s vision with information from a practicing optometrist in this free video on eye health.
Expert: James W. Kirkconnell
Contact: www.bec2020.com
Bio: Dr. James W. Kirkconnell graduated from the University of Houston College of Optometry in 1984.
Filmmaker: Dimitri LaBarge
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well everybody dies
@Adam112510 I REALLY HOPE YOU DIE…
@JoshuaBaldwinBrown I got glasses last week. Trust me, they're amazing. Even if you look like an emo Harry Potter like I do, they're still great to wear around the house or something.
DONT READ THIS CAUSE IT ACTULLY WORKS. YOU WILL BE KISSED ON THE NEAREST POSSIBLE FRIDAY BY THE LOVE OF YOUR LIFE. TOMARROW WILL BE THE BEST DAY OF YOUR LIFE. HOWEVER IF YOU DO NOT POST THIS COMMENT TO AT LEAST 3 VIDEOS YOU WILL DIE WITHIN THE NEXT 2 DAYS. NOW UV STARTED READING THIS SO DUNT STOP. THIS IS SO SCARY PUT THIS ON AT LEAST 5 VIDEOS IN THE NEXT 143 MINUTES WHEN UR DONE PRESS F6 AND UR LOVERS NAME WILL APPEAR ON THE SCREEN IN BIG LETTERS THIS IS SO SCARY IT WORKS
@barfumer romanian air force is called RoAF…RAF it's Royal Air Force
@barfumer romanian air force is called RoAF…RAF it's Royal Air Force
I live in Nashville!! I thought this dude was from here wen I heard bellvue
20/20 means reading 5 minute-of-arc letters at 20 feet or 6 meters. The 20/20 letter is 3/8 inch high. The "width" of the black letters is 1 minute-of-arc. The resolving "limit" of the human eye is considered to be 1 minute-of-arc. Best, Otis
i hope i have this as i want to be a fighter pilot in the raf
thanks a lot, the best explanation i found