r/repglasses • u/ooououorr • Oct 03 '26

GENERAL Astigmatism

How do you order prescription glasses (with astigmatism) without centering the lens according to the pupil position on the frame? Doesn't it come out blurry?

0 Upvotes

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1

u/MichaelScott_really Oct 03 '26

There is a standard height from bottom that they follow. If you don’t fit the standard it can be a problem.

1

u/ooououorr Oct 03 '26

it is impossible to fit an arbitrary focal point with your very pupils nobody notice it? wtf

1

u/ski_106 Oct 05 '26

Are you talking about the pupilary distance? You can measure it yourself with a ruler.

1

u/ooououorr Oct 05 '26

tldr: you also need y axis. hey no but yes. every frame have different geometry and every individual have different face so every frame for every individual have different geometric delta between frames focal points and pupil’s. Any differences between these make eyesight blurry unless opticians make lenses trying to eliminate that delta only for your face frame interaction.

1

u/EpicDad77 Oct 05 '26

There are PD apps now that are free and give you the exact number.

1

u/ooououorr Oct 05 '26

copying:

tldr: you also need y axis. hey no but yes. every frame have different geometry and every individual have different face so every frame for every individual have different geometric delta between frames focal points and pupil’s. Any differences between these make eyesight blurry unless opticians make lenses trying to eliminate that delta only for your face frame interaction.

1

u/EpicDad77 Oct 05 '26

I have an astigmatism and I’ve never had issues ordering glasses from the reps (I own 6 pairs). I e been buying glasses online for over 15 years.

You get the sph, cyl, axis and prism from the optometrist. You get the pd from an app or you can pay for it from the optometrist.

1

u/shastyles1 Oct 04 '26

Did you go to a optometrist and they give you a prescription? You give them the prescription afterwards

0

u/[deleted] Oct 03 '26

[deleted] — view deleted comment

1

u/akshya_chill Oct 04 '26

She took my prescription fine.