Difference between revisions of Guide:Reading glasses prescriptions

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Lloydmom (talk | contribs)
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==Axis==
==Axis==
{{main|Axis}}
{{main|Axis}}
[[Axis]] is the degree at which cylinder values are relevant. The correct cylinder value but the wrong axis value would make the correction pretty worthless! When reducing your correction, you should never ever change the axis, especially if you've had that value of axis for a long time.
Axis is the degree at which cylinder values are relevant. The correct cylinder value but the wrong axis value would make the correction pretty worthless! When reducing your correction, you should never ever change the axis, especially if you've had that value of axis for a long time.


If you don't have any cylinder correction, you will not have an axis value either.
If you don't have any cylinder correction, you will not have an axis value either.
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==Pupillary Distance==
==Pupillary Distance==
[[Pupillary Distance]] or PD, is the final set of numbers you need to be aware of. Most likely this is not listed on your "prescription" you will need to ask for it or measure it yourself.
{{main|Pupillary Distance}}
Pupillary Distance or PD, is the final set of numbers you need to be aware of. Most likely this is not listed on your "prescription" you will need to ask for it or measure it yourself.


[[Category:Guides]]
[[Category:Guides]]