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| It's fairly easy to stop myopia from progressing, by just wearing differentials. The axial length of the eye does not randomly change by itself, it only changes in response to [[stimulus]]. | | It's fairly easy to stop myopia from progressing, by just wearing differentials. The axial length of the eye does not randomly change by itself, it only changes in response to [[stimulus]]. |
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| ==How to reduce differentials== | | ==See also== |
| ===Simple way===
| | [[Guide:Reducing differentials|Reducing differentials]] |
| The EndMyopia process will probably involve a lot of trial and error. Bearing this in mind, Jake recommends you reduce from your glasses prescription by about '''1.25 diopters'''.<ref name=ChooseReduction /> This will depend on the distance you work from the screen, so reduce it by less if you work farther from the screen. Between 1-2 diopters is a good range - anything more than that and you'll probably want to double check it's a good idea.
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| ===Complicated way with math===
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| The base point is an [[emmetropic eye]] with 20/20 vision.
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| Everyone has a different level of myopia, and depending on this you can calculate the required amount of correction to just see the object, based on how far away it is.
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| Firstly, find out the distance from you to the object. In plain English, how far away is the object in centimetres?
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| Type in the cm value you get into [https://endmyopia.org/focal-calculator/calc.html EndMyopia diopter calculator] to figure out the '''difference''' between your full strength prescription glasses, and what you actually need to see the screen.
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| Then, take the difference and subtract it from your full strength prescription glasses. ''Voila!'' you have a differential prescription.
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| ====Example====
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| Suppose you have [[Guide:OD/OS|OD/OS]] -4.25/-3.25, and you see, or want to see your monitor 60cm away from where you sit.
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| Go to the [https://endmyopia.org/focal-calculator/calc.html calculator], and enter in 60cm. The result is '''-1.75'''. Subtract this value from both of your eyes (be careful with negative numbers).
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| <math>OD (right eye): -4.25-(-1.75)=-2.5</math>
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| <math>OS (left eye): -3.25-(-1.75)=-1.5</math>
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| So, you should use OD/OS -2.5/-1.5, if 60cm is the main distance you perform up-close activity. Simple!
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| ==References== | | ==References== |
| {{reflist}} | | {{reflist}} |
| [[Category:Articles]] | | [[Category:Articles]] |