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Astigmatism.  The correction that is exceedingly rare in actual necessity.  Yes, you probably didn’t actually have astigmatism the first time they gave you glasses with correction for it.  Surprised?  Incredulous?  Not sure what to think?

Browse this section for science about astigmatism, how-to guides, and a whole lot of students who successfully reversed their lens-induced astigmatism.  Odds are you won’t need this complex focal plane correction for long!

How Is Astigmatism Measured, And Why Is It Flawed?

If you missed the first installment of the Astigmatism Guide, see it here. There are three frequently used ways to measure astigmatism. The type of measurement you are likely to get, depends on the kind of facility you visit for the measurement. Most myopia prescriptions originate from optic shops. If you want to know why I hold this particular type of 'medical facility' in some measure of contempt, take a look at this post. Let's take a look at the [...]

The Definitive Guide: What Is Astigmatism

What Is Astigmatism?  A defect in the eye or in a lens caused by a deviation from spherical curvature which prevents light rays from meeting at a common focus and so results in distorted images. There are any number of highly detailed sources all over the Web, discussing the question of 'what is astigmatism' in terms of physiological flaw of the eye.  While we won't go through the trouble of reiterating all the commonly information here, we will take a closer [...]