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glasses terminology?????? (Read 439 times)
Apr 3
rd
, 2004 at 2:31am
Capt. Farhan
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I am living in saudi arabia. so here the term use for glasses power is -1 or -2 etc . what does this 20/20 means.
Suppose if i can see very poorer without glasses but with the help glasses or contact lenses i can see clearly so it is ok in aviation?????????
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Apr 4
th
, 2004 at 1:14am
Meinas
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sorry about the delay on the answer...
"20/20. Normal visual acuity. Upper number is the standard distance (20 feet) between an eye being tested and the eye chart; lower number indicates that a tested eye can see the same small standard-sized letters or symbols as a normal eye at 20 feet. "
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Apr 4
th
, 2004 at 12:40pm
Capt. Farhan
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Thanks for giving me the answer
Farhan
Quote:
sorry about the delay on the answer...
"20/20. Normal visual acuity. Upper number is the standard distance (20 feet) between an eye being tested and the eye chart; lower number indicates that a tested eye can see the same small standard-sized letters or symbols as a normal eye at 20 feet. "
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Apr 9
th
, 2004 at 11:34am
bm_727
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hey farhan
yes, you can fly a civil plane as long as you have vision correctable within 20/20
... But I don't think the military will let you
...
&&[glow=green,2,300]I didn't lose my mind- I sold it on Ebay! [/glow]
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Apr 9
th
, 2004 at 1:01pm
Hagar
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Quote:
hey farhan
yes, you can fly a civil plane as long as you have vision correctable within 20/20
... But I don't think the military will let you
...
I'm not sure of the military requirements in all countries. Former RAF Harrier display pilot David Haines wears glasses while flying.
http://www.f4aviation.co.uk/airshow00/waddo/harrier.htm
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