Difference between revisions of User:User

User:User (view source)

3 bytes removed , 6 September 2021

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 === Insights about Transient Astigmatism and Cylinders ===
-Well, it looks like cylinders ruin everything. From what I can see, there are 2 mechanisms: the eye itself shrinks and grows based on defocus for emmetropization, and then visual perception changes, but it can only adapt to gradual changes. That's why blur adaptation is bad, as the axial length and visual perception go out of sync, later leading to lots of accommodation to "simulate" myopia when making the light input match visual perception's requirements.
+Well, it looks like cylinders ruin everything. My theory is that there are 2 mechanisms: the eye itself shrinks and grows based on defocus for emmetropization, and then visual perception changes, but it can only adapt to gradual changes. That's why blur adaptation is bad, as the axial length and visual perception go out of sync, later leading to lots of accommodation to "simulate" myopia when making the light input match visual perception's requirements.
 If you stop using glasses, your eye's axial length adjusts, but the visual system doesn't care. It'll still think your vision is distorted in the same way as before, and has a dependency on the lenses you used.