Well...
Normal vision is 20/20. This means that the test subject sees the same line of letters at 20 feet that a normal person sees at 20 feet. 20/40 vision means that the test subject see as 20 feet what a normal person sees at 40 feet. Another way of saying this is that a person with 20/40 vision has vision that is only half as good as normal - or, objects must be at half the normal distance for him to see them. A person with 20/20 vision is able to see letters 1/10th as large as someone with 20/200 vision. However, 20/15 vision is better than 20/20. A person with 20/15 vision can see objects at 20 feet that a person with 20/20 vision can only see at 15 feet.
Posted By: norway on July 20th 2011 at 12:44:01
Message Thread
- Cameron turns to the shaggy defence (n/m) (NCFC) - Firstnews, Jul 20, 12:10:07
- What exactly is "20-20" hindsight?? (n/m) (NCFC) - CB41, Jul 20, 12:20:01
- What do you think it might be? (n/m) (NCFC) - norway, Jul 20, 12:20:46
- I have no idea, it conveys no meaning what-so-ever, hence the question. (n/m) (NCFC) - CB41, Jul 20, 12:29:17
- have you heard of '20-20 vision'? (n/m) (NCFC) - Tricky Hawes, Jul 20, 12:30:52
- I have and I have read the description of what it is, although I (NCFC) - CB41, Jul 20, 12:34:38
- See if you can put the two together (NCFC) - norway, Jul 20, 12:37:31
- Aren't you the clever c**t. (n/m) (NCFC) - CB41, Jul 20, 12:39:58
- See if you can put the two together (NCFC) - norway, Jul 20, 12:37:31
- I have and I have read the description of what it is, although I (NCFC) - CB41, Jul 20, 12:34:38
- and a google search seems to suggest that no one else knows either. (n/m) (NCFC) - CB41, Jul 20, 12:30:45
- First google result after a search of "20-20 hindsight" (NCFC) - Arizona Bay, Jul 20, 12:34:50
- Yes but it doesn't explain what relevence the "20-20" has. Anyway, (NCFC) - CB41, Jul 20, 12:39:16
- *off* (n/m) (NCFC) - tudders, Jul 20, 12:56:36
- Look mate, it's me who is f***ed of - I should know whether I'm f***ed "of" or "off" (n/m) (NCFC) - CB41, Jul 20, 12:59:32
- 20-20 = perfect (n/m) (NCFC) - norway, Jul 20, 12:40:06
- *off* (n/m) (NCFC) - tudders, Jul 20, 12:56:36
- Yes but it doesn't explain what relevence the "20-20" has. Anyway, (NCFC) - CB41, Jul 20, 12:39:16
- First google result after a search of "20-20 hindsight" (NCFC) - Arizona Bay, Jul 20, 12:34:50
- have you heard of '20-20 vision'? (n/m) (NCFC) - Tricky Hawes, Jul 20, 12:30:52
- ^^^ The Mother Tactic (NCFC) - Arizona Bay, Jul 20, 12:27:14
- aka elicitation (NCFC) - Tricky Hawes, Jul 20, 12:28:41
- why? (NCFC) - Ralf Scrampton, Jul 20, 12:35:35
- that's pretty much the response to questions on here. Too many people up their own arses. (n/m) (NCFC) - CB41, Jul 20, 12:37:44
- I'm trying to help you (n/m) (NCFC) - norway, Jul 20, 12:39:26
- I'm beyond help, caiou (n/m) (NCFC) - CB41, Jul 20, 12:41:16
- Yes. Ciao (I think?) (n/m) (NCFC) - norway, Jul 20, 12:44:25
- Chow, I'm having chow. (n/m) (NCFC) - CB41, Jul 20, 12:47:16
- Yes. Ciao (I think?) (n/m) (NCFC) - norway, Jul 20, 12:44:25
- I'm beyond help, caiou (n/m) (NCFC) - CB41, Jul 20, 12:41:16
- I'm trying to help you (n/m) (NCFC) - norway, Jul 20, 12:39:26
- that's pretty much the response to questions on here. Too many people up their own arses. (n/m) (NCFC) - CB41, Jul 20, 12:37:44
- why? (NCFC) - Ralf Scrampton, Jul 20, 12:35:35
- aka elicitation (NCFC) - Tricky Hawes, Jul 20, 12:28:41
- I have no idea, it conveys no meaning what-so-ever, hence the question. (n/m) (NCFC) - CB41, Jul 20, 12:29:17
- What do you think it might be? (n/m) (NCFC) - norway, Jul 20, 12:20:46
- What exactly is "20-20" hindsight?? (n/m) (NCFC) - CB41, Jul 20, 12:20:01
Reply to Message
In order to add a post to the WotB Message Board you must be a registered WotB user.
If you are not yet registered then please visit the registration page. You should ensure that their browser is setup to accept cookies.