Difference between revisions of Guide:Reducing lens complexity

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==When to reduce lens complexity==

[[Lens complexity]] is best reduced before getting into the [low diopters] range. Ideally, both eyes would be equal before -1.5 diopters. (TODO: cite an EM source for this)

[[Lens complexity]] is best reduced before getting into the [[low diopters]] range. Ideally, both eyes would be equal before -1.5 [[diopters]]. (TODO: cite an EM source for this)

==How to reduce lens complexity==

Make your first reduction a simple spherical reduction. This will teach you the basics of the [[EndMyopia]] methods.

'''Make your first reduction a simple [[spherical]] reduction. This will teach you the basics of the [[EndMyopia]] methods.'''

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>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 is ~~a drop in lense 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.

~~An equalizing~~ reduction ~~is done~~ to ~~bring the eyes closer~~ to ~~having~~ the ~~same level of correction~~.

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

There are three rules for reducing complexity:

# <div>Alternate types of reductions. Simple -> Equalizing -> Simple -> Equalizing...</div>

# <div>Change only spherical or only cylindrical and never both simultaneously</div>

# <div>When equalizing, change both differential lenses and normalized lenses simultaneously to keep the [[focal plane|focal planes]] in sync.</div>

TODO: some concrete examples

==References==

@@ Line 5: / Line 5: @@
 ==When to reduce lens complexity==
-[[Lens complexity]] is best reduced before getting into the [low diopters] range. Ideally, both eyes would be equal before -1.5 diopters. (TODO: cite an EM source for this)
+[[Lens complexity]] is best reduced before getting into the [[low diopters]] range. Ideally, both eyes would be equal before -1.5 [[diopters]]. (TODO: cite an EM source for this)
 ==How to reduce lens complexity==
-Make your first reduction a simple spherical reduction. This will teach you the basics of the [[EndMyopia]] methods.
+'''Make your first reduction a simple [[spherical]] reduction. This will teach you the basics of the [[EndMyopia]] methods.'''
 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>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 is a drop in lense 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.
-An equalizing reduction is done to bring the eyes closer to having the same level of correction.
+Either type of reduction can be applied to [[spherical]] power or [[cylindrical]] power.
+There are three rules for reducing complexity:
+# <div>Alternate types of reductions. Simple -> Equalizing -> Simple -> Equalizing...</div>
+# <div>Change only spherical or only cylindrical and never both simultaneously</div>
+# <div>When equalizing, change both differential lenses and normalized lenses simultaneously to keep the [[focal plane|focal planes]] in sync.</div>
+TODO: some concrete examples
 ==References==