Numbers question

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Numbers question

Postby It's Just Me » Sun Apr 19, 2009 1:52 am

I've seen on the boards here........


"I was 7.75 in one eye and 7.50 in the other..."

What does that mean? How does that correlate to "20/30" or "20/375" etc.

I'm used to seeing astigmatism expressed as -2.25 (mine before lasik) and 20/- so that is confusing me.
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Postby It's Just Me » Tue Apr 21, 2009 2:35 pm

*echo*

hello? :)
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Postby lisaew54 » Sun May 10, 2009 11:32 pm

Hi Just Me,
I was really wondering that myself and hopefully someone will enlighten us soon. I have always used the 20/20 thingie, so really not sure about the way they do it on here.
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Re: Numbers question

Postby LasikExpert » Mon May 11, 2009 3:56 pm

We have a detailed article about how to read an eye prescriptionthat explains most of your questions.
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