momochi asked in HealthOptical · 1 decade ago

What does SPH mean for my OS/CYL eye prescription?

In my eye prescription, it says my OD - CYL is -.25. For my OS - CYL it says "sph". What does that mean? Does that mean it's the same as my OS - SPH, which is -2.25? I don't understand eye presrcriptions! Please help!

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  • 1 decade ago
    Favorite Answer

    OD=ocular distal or right eye

    OS=ocular sinister or left eye

    SPH=sphere power

    CYL= cylinder power or astigmatism

    If you see the "sph" in the "cyl" box, that means you have no astigmatic correction in that particular eye.

    Hope that answers your question.

    Source(s): certified optician for 20 years
  • 4 years ago

    For the best answers, search on this site https://shorturl.im/avKJd

    It means you only need sph power No you don't have a cyl or axis. However if prescription is higher than -100 or +100 you should give a PD. PD is distance between pupils in MMeters Any optician can measure in seconds or even a friend if you have or buy a mm ruler

  • Anonymous
    4 years ago

    This Site Might Help You.

    RE:

    What does SPH mean for my OS/CYL eye prescription?

    In my eye prescription, it says my OD - CYL is -.25. For my OS - CYL it says "sph". What does that mean? Does that mean it's the same as my OS - SPH, which is -2.25? I don't understand eye presrcriptions! Please help!

    Source(s): sph os cyl eye prescription: https://tr.im/60Dcb
  • Anonymous
    6 years ago

    my prescription on cylinder say od = sph

    os = sph what that mean? I want make buy online and I don't know what number I have to put on cylinder .

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