Difference between revisions of Guide:Reducing lens complexity
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==When to reduce lens complexity== | ==When to reduce lens complexity== | ||
[[Lens complexity]] is best reduced before getting into the [[low diopters]] range. Ideally, both eyes | [[Lens complexity]] is best reduced before getting into the [[low diopters]] range. Ideally, normalized correction for both eyes should be simple and equal by the time a low diopters range (e.g. -1.5 [[diopters]])<ref>https://endmyopia.org/pro-topic-nick-is-time-to-equalize-diopters/</ref> is reached. | ||
==How to reduce lens complexity== | ==How to reduce lens complexity== | ||
'''Make your first reduction | '''Make your first reduction or two simple and [[spherical]]. This will teach you the basics of the [[EndMyopia]] methods.''' | ||
There are two types of reductions: | There are two types of reductions: | ||
* <div>A simple reduction or binocular reduction is drop in lens powers for both eyes, simultaneously</div> | * <div>A ''simple reduction'' or ''binocular reduction'' is drop in lens powers for both eyes, simultaneously</div> | ||
* <div>An equalizing reduction or monocular reduction is drop in lens power for one eye, the eye with greater correction (more negative)</div> | * <div>An ''equalizing reduction'' or ''monocular reduction'' is drop in lens power for one eye, the eye with greater correction (more negative)</div> | ||
An [[equalizing]] reduction is done to bring the eyes closer to having the same level of correction. Jake said that "...if you do reduce the ratio, you should have at least 2 regular spherical reductions in between."<ref>https://community.endmyopia.org/t/key-to-patching-successfully-reducing-diopter-ratio/333/6</ref> This is not always possible, especially when [[Guide:High diopter gap|high anisometropia]] is involved. | An [[equalizing]] reduction is done to bring the eyes closer to having the same level of correction. Jake said that "...if you do reduce the ratio, you should have at least 2 regular spherical reductions in between."<ref>https://community.endmyopia.org/t/key-to-patching-successfully-reducing-diopter-ratio/333/6</ref> This is not always possible, especially when [[Guide:High diopter gap|high anisometropia]] is involved. | ||
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# <div>Alternate types of reductions. Have one (Simple > Equalizing > Simple > Equalizing...) or two (Simple > Simple > Equalizing > Simple > Simple > Equalizing...) simple drops between equalizing drops.</div> | # <div>Alternate types of reductions. Have one (Simple > Equalizing > Simple > Equalizing...) or two (Simple > Simple > Equalizing > Simple > Simple > Equalizing...) simple drops between equalizing drops.</div> | ||
# <div>Change only spherical or only cylindrical and never both simultaneously.</div> | # <div>Change only spherical or only cylindrical and never both simultaneously.</div> | ||
# <div>For an equalizing reduction, change both differential lenses and normalized lenses simultaneously to keep the [[focal planes]] in sync.</div> | # <div>For an equalizing reduction, change both differential lenses and normalized lenses simultaneously to keep the [[focal planes]] in sync.<ref>https://endmyopia.org/the-diopter-ratio-trap-dont-favor-one-eye/</ref></div> | ||
# <div>For a simple reduction, change differential lenses a few weeks after normalized lenses to keep changes to [[focal planes]] to a minimum.</div> | # <div>For a simple reduction, change differential lenses a few weeks after normalized lenses to keep changes to [[focal planes]] to a minimum.</div> | ||