Difference between revisions of Guide:Reducing lens complexity

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There are two types of reductions:

* <div>A simple reduction is ~~a 0.25 [[diopter]]~~ drop in ~~lense power~~ 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 is ~~a 0.25 [[diopter]]~~ drop in ~~lense~~ 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.

~~Either type~~ of ~~reduction can be applied~~ to [[spherical]] power or [[cylindrical]] power.

There are three types of reductions with respect to the power change:

* a 0.25 [[diopter]] drop to [[spherical]] power

* a 0.25 D drop to [[cylindrical]] power

* a trade of 0.5 D cylindrical power for 0.25 spherical power

'''There are four rules for reducing complexity:'''

@@ Line 13: / Line 13: @@
 There are two types of reductions:
-* <div>A simple reduction is a 0.25 [[diopter]] drop in lense power 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 is a 0.25 [[diopter]] drop in lense 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.
-Either type of reduction can be applied to [[spherical]] power or [[cylindrical]] power.
+There are three types of reductions with respect to the power change:
+* a 0.25 [[diopter]] drop to [[spherical]] power
+* a 0.25 D drop to [[cylindrical]] power
+* a trade of 0.5 D cylindrical power for 0.25 spherical power
 '''There are four rules for reducing complexity:'''