Difference between revisions of Double vision
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[[File:Diplopia.jpg|thumb|250px|An example of Double vision]] | [[File:Diplopia.jpg|thumb|250px|An example of Double vision]] | ||
This phenomenon usually occurs as an intermediate step in your vision improvement and is to be differentiated from [[ | This phenomenon usually occurs as an intermediate step in your vision improvement and is to be differentiated from [[astigmatism]] (“Directional Blur”). Your vision biology is constantly adjusting to environmental stimulus, whereby different parts of your system respond at different rates. After clearing up the [[Ciliary Spasm|ciliary spam]] and after starting to improve the physical shape of your eyeball, your [[visual cortex]] already receives plenty of clear data. Our brains however were not built to handle artificial changes to the natural [[Focal Plane|focal plane]]. This means that even when the image hitting your [[Retina]] is clear after reducing the strength of your glasses, your brain has to relearn how to create a single clear image out of this new data. This can take longer than resolving the refractive state of your eyeballs and manifests in multiple overlapping clear images of the same image. | ||
This might be somewhat common as you start improving your eyesight — more ghosted images will begin to appear as your [[visual cortex]] is constantly learning to readjust to new signals. | This might be somewhat common as you start improving your eyesight — more ghosted images will begin to appear as your [[visual cortex]] is constantly learning to readjust to new signals. | ||
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==Transient Astigmatism== | ==Transient Astigmatism== | ||
'''Transient astigmatism''' ([https://endmyopia.org/transient-astigmatism-reduced-diopters-now-got-astigmatism/ article], [https://www.youtube.com/watch?v=DxemH7AoMI8 video]) is Double vision and measurable cylinder that occurs [[reduction|when you reduce]] spherical and is temporary, so you should stop reducing and wait for it to disappear plus a little bit extra time, and reduce less aggressively next time. It becomes more severe when you reduce too quickly<ref> | '''Transient astigmatism''' ([https://endmyopia.org/transient-astigmatism-reduced-diopters-now-got-astigmatism/ article], [https://www.youtube.com/watch?v=DxemH7AoMI8 video]) is Double vision and measurable cylinder that occurs [[reduction|when you reduce]] spherical and is temporary, so you should stop reducing and wait for it to disappear plus a little bit extra time, and reduce less aggressively next time. It becomes more severe when you reduce too quickly<ref>“So people that push the reductions get this transient astigmatism symptom that’s kind of a pain.” https://endmyopia.org/ruis-glasses-and-headaches-9-75-to-6-00-progress/</ref> or too much or too often. | ||
Even though it's functionally the same as real [[astigmatism]] (although rapidly changing on axis and amount), do not get cylinder correction for it, to the maximum extent possible, since you're just transitioning between two spherical values. If you do, you would just put extra load on your visual cortex for no reason, slowing down your progress. | Even though it's functionally the same as real [[astigmatism]] (although rapidly changing on axis and amount), do not get cylinder correction for it, to the maximum extent possible, since you're just transitioning between two spherical values. If you do, you would just put extra load on your visual cortex for no reason, slowing down your progress. | ||
If it's too noticeable, you can step up spherical, but if it's not that bad ( | If it's too noticeable, you can step up spherical, but if it's not that bad (“if you don't notice it, or if you hardly ever notice it, or if it's really just something that the optometrist shows and you see a tiny little bit better”), it's also OK to leave it. | ||
If you somehow created a very large amount of transient astigmatism, [https://endmyopia.org/plus-lens-therapy-read-this-before-trying/ such as this person who had up to 4.25 D of myopic defocus], you might consider adding some cylinder correction, but only as a last resort. | If you somehow created a very large amount of transient astigmatism, [https://endmyopia.org/plus-lens-therapy-read-this-before-trying/ such as this person who had up to 4.25 D of myopic defocus], you might consider adding some cylinder correction, but only as a last resort. | ||