Is nearsightedness a + or a -?

I have 2.50 nearsightedness and I am trying to buy contacts online but I don't know if it is equivalent to -2.50 or +2.50. Please help me. Thanks


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Most Helpful Girl

  • i think it's a +

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What Guys Said 1

What Girls Said 1

  • I looked it up and it said nearsightedness requires a concave lens, which is a - power. You could call your eye doctor to make sure.

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    • Yeah, maybe I'll just pay a visit to my doctor before buying anything... :)

    • That would probably be best!

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