Ron Johnson wrote:
> On 2009-07-21 10:45, Petri Laihonen wrote:
> [snip]
>> definitely not 20/20 (Assumed 20/20 is good)
>
> http://en.wikipedia.org/wiki/Visual_acuity
> http://en.wikipedia.org/wiki/Visual_acuity#Visual_acuity_expression
>
> Someone studied a lot of people's vision and determined what you
> "should" be able to see at 20 feet. That's the denominator.
>
> The numerator is what *you* can see.
>
Every blur I see, I make an assumption it is an elephant!
:-p
P
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