Prescription confusion

Discussion in 'Glasses' started by yelruc2, Oct 2, 2021.

  1. yelruc2

    yelruc2

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    Hi, I'm sure this is common newby question, but I'm a bit confused.

    I just had my eyes examined by a different optometrist than for my exam 18 months ago. The Dr. told me that my prescription had not changed much so I'm still debating whether to get new lenses yet or not.

    My question is: In comparing the the two prescriptions, they appear to be using different units. For example, the first doctor uses decimals to express Sphere, Cylinder and Add (-0.25, -1.5, +2.50). The second doctor uses whole numbers (Sphere 101, Cylinder -175, Add +295).

    Are these two different ways of expressing the same thing?

    Thanks,
    Bruce in San Jose
     
    yelruc2, Oct 2, 2021
    #1
  2. yelruc2

    madea17547

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    It's the same thing. Doc #2 just isn't adding the decimal point.
     
    madea17547, Dec 22, 2021
    #2
  3. yelruc2

    dee

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    When comparing the two prescriptions, it's evident that they utilize different units of measurement. The first doctor employs decimals to express the values for Sphere, Cylinder, and Add (-0.25, -1.5, +2.50). In contrast, the second doctor uses whole numbers (Sphere 101, Cylinder -175, Add +295). The variation in units can potentially lead to confusion or the need for conversion when interpreting and comparing the prescriptions.
     
    dee, Jun 14, 2023
    #3
  4. yelruc2

    sboptical

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    sboptical, Jun 19, 2023
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