Question about eyeglass prescription?


Question:
My little boy had an eye exam and his prescription reads like this:


OD: +2.75 -1.5 180
OS: +2.75 -1.5 180

What does this mean? I've gone online and researched it, but what keeps throwing me is the plus sign before the first number, since he can't see things that are far away. The dr. said that he'll be corrected to 20/40. What is he seeing now, based on this prescription?

Answers:
eyeglass prescription information: http://www.usaeyes.org/lasik/faq/read-ey.
Why don't you ask the dr what those #'s mean? Or stop at an optomitrist's shop located in many malls?
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