Seriously, what the fuck is this?

  • Donebrach@lemmy.world
    link
    fedilink
    arrow-up
    0
    ·
    3 months ago

    You have a 3 year old prescription that you can’t parse. You need a new eye exam and new prescription. Walmart isn’t the problem here. You are.

    • over_clox@lemmy.worldOP
      link
      fedilink
      arrow-up
      0
      ·
      3 months ago

      Oh come on, how many people do you expect to read that weird character as a zero? That’s not common Arabic numerals…

      • Rivalarrival@lemmy.today
        link
        fedilink
        English
        arrow-up
        0
        ·
        3 months ago

        You’re talking about the “weird characters” in the cylinder corrections? They are minus signs in front of the zeros. The other commentator missed them as well.

        Spherical corrections are given in diopters, which are rarely outside of +9 (very farsighted) to -9 (very nearsighted) with 0.25 precision: You will only see .00, .25, .50, or .75 after the decimal point in those fields.

        Cylinder corrections are also in diopters with 0.25 precision, but are usually pretty small.

        Axis is in integer degrees, so will be a number between 0 and 360. This is the angle at which the cylindrical correction should apply, to correct astigmatism.

        You may encounter “Add” for bifocal/trifocal lenses, which is given in positive diopters with 0.25 precision.

        “PD”, or “pupillary distance” is the spacing of your eyes, given in millimeters.

        Once you know what should be in each of the fields, figuring out the handwriting is pretty straightforward.

        • over_clox@lemmy.worldOP
          link
          fedilink
          arrow-up
          0
          ·
          edit-2
          3 months ago

          I’ve already been educated. Apparently my eye doctor didn’t know how to write a fucking zero.

          How am I supposed to know that weird Greek looking symbol is meant to be the Arabic numeral 0 ?

          It looks absolutely nothing like a zero.

          My bad, sorry I don’t know how to read chicken shit. Been wondering for years…

          • Rivalarrival@lemmy.today
            link
            fedilink
            English
            arrow-up
            0
            ·
            3 months ago

            Your doctor does know how to write a zero. They did not write a zero. It’s not a “zero”. It’s a minus 0.25 and a minus 0.50.

            If you don’t have those minus signs, the cylinder correction is going to double your astigmatism, not negate it.

            • over_clox@lemmy.worldOP
              link
              fedilink
              arrow-up
              0
              ·
              3 months ago

              Nope. Same handwriting, according to you, would yield…

              -0 .5 -0

              That’s how the doctor apparently wrote his zeroes.

              • Rivalarrival@lemmy.today
                link
                fedilink
                English
                arrow-up
                0
                ·
                edit-2
                3 months ago

                There are five handwritten zeros on that script. 4 of them have horizontal strokes to the left of the zero, with that stroke connected to the zero. Two of those are minus signs, two are the crossbars from the tops of a “5”.

                The fifth zero is in the left axis field, which does not have a horizontal stroke connected to the zero. If the doctor wrote all their zeros with that weird tail to the top left, why does that one zero lack that tail?

                The answer is that they wrote all five zeros the same way, and four of them have deliberate horizontal strokes before them. Where those strokes aren’t from the fives, they can only be from minus signs.

                I have never seen a cylinder correction of the opposite sign of the spherical correction: if one is negative, they are both negative.

                Furthermore, I have never seen a positive spherical or cylindrical correction lacking a plus sign. If they intended a positive correction, they would have included an explicit “+” instead of nothing.

                The axis numbers are -0.25, and -0.50.

                When you can’t see out of the glasses you ordered from Zenni, this is why.

                • over_clox@lemmy.worldOP
                  link
                  fedilink
                  arrow-up
                  0
                  ·
                  3 months ago

                  Others tell me the axis numbers are 134 and 70. You’re probably referring to the cylindrical measurements.

                  Comparing all to the spherical measurements, the eye doctor distinctly noted the negative symbol apart from the numbers.

                  That weird shaped zero is consistent across the prescription, that’s not a preceding negative symbol, that’s just how she wrote her zeroes.

                  • Rivalarrival@lemmy.today
                    link
                    fedilink
                    English
                    arrow-up
                    0
                    ·
                    3 months ago

                    I missed it the first time around, but the doctor had two more zeros in the dates: neither has that leading line. Those are minus signs on the cylinder fields.