Is this eyeglass prescription properly done?

Question

I just got new glasses. The prescription was:

....Sph....Cylin...Axis...Add......PD
R..+1.25...-1.50...100...+1.75...31.5
L..+1.75...-2.00...076...+1.75...32.0

The glasses came with a card showing what I assume were the actual measurements of the lenses I received

....Sph....Cylin...Axis...Add......PD
R..+1.22...-1.40...100...+1.72...31.4
L..+1.69...-1.84...076...+1.72...31.9

These were VSPs "Unity PLx" progressive lenses, where the marketing hype says, "Freeform technology uses state-of-the-art lens processing equipment and advanced digital lens designs to deliver the most precisely crafted prescription possible. Customized UNITY lenses can be created to address your patients’ specific visual requirements, within 1/100 of a diopter" blah blah blah.

Given that, some of those numbers seem further off than I was expecting. I'm also having a hard time adjusting to these glasses, though they aren't my first pair of progressives. I seem to have a much narrower field of clear vision than with my old pair, and it... well, hard to explain, but it doesn't seem to be in quite the right place.

Do those measurements seem within a normal, expected range compared to what my prescription called for, or should I add this to my list of reasons for being suspicious that these glasses aren't very well made (eg, I don't think I got the Crizal coating I paid for, either)?

Footprintz · Accepted Answer

Yep, that looks very normal. There is nothing there that could be a cause of any problems you have with them. The computer factors in many different things including tilt, vertex distance, PD, and comes up with the precise power needed for optimum vision. Those slight variations are closer to the prescription than any of the non free form lenses could ever be. There is so little difference in the powers, no one could tell that they aren't the same....but that isn't the cause.

If the measurements taken by the optometrist or who ever weren't correct , that is a different story. 

It could even just be the tilt of the lenses on you that isn't quite right. They have to be sitting at a 12 degree angle to function properly. It could also be just a minor change in the height would make the needed difference. Raising or lowering the frame by 1mm can make a big change sometimes.

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Is this eyeglass prescription properly done?

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