Basics of Astigmatism

[@otiebrown9999]

Incredible.

[@mariahgross13]

Thank you!! Studying for my COA and this really helped me!

[@chidreamer]

Now I understand astigmatism better. Thanks. 😊

[@R3cce]

I have WTR astigmatism. I see vertical (upward) lines in better focus

[@glitchmaster30]

I have a prescription -3.00/-2.00 x90 with K readings 7.80mm @ 180 and 7.40mm @ 90 - is this WTR or ATR - I believe it is ATR