Convert the visual acuity from Snellen chart to the # for my prescription?

Subject: Convert the visual acuity from Snellen chart to the # for my prescription?

Date: Mon Jul 26 19:14:41 2004
Posted by Haik Patatanyan
Grade level: 10-12 School: Clark Magnet High School
City: Glendale State/Province: CA Country: USA
Area of science: Medicine
ID: 1090887281.Me

Message:


ex. on the snellen chart I can see 20/200 or 20/150. Can you please tell me 
what that would be on my glasses/contacts perscription? That is a number like 
this -2.50, -2.00 or -1.75. These are just examples. I want to know the 
Convertions, Thank you

Re: Convert the visual acuity from Snellen chart to the # for my prescription?

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