Difference between revisions of Frequently Asked Questions/FFAQ

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==Glasses and lenses==

===What is the difference between normalized and differentials?===

[[Normalized]] are [[distance vision]] glasses. They are typically undercorrected from [[20/20]] (what an [[optometrist]] would give you) by no more than '''0.25 diopters'''. Exceptions are made, usually in the 7+ diopter range. In the majority of cases, reducing any more than 0.25 diopters can be severly counterproductive.

[[Differentials]] are glasses used exclusively for [[close-up]]. This is usually for monitors and screens. These glasses are '''severely undercorrected''' for any distance vision, and correct you just enough to see the screen at a comfortable distance. Differentials should provide a [[blur horizon]] that is comfortable.

The majority of effective improvements will always come from distance vision and normalized glasses, combined with good habits.

===When do I wear normalized, when do I wear differentials?===

[[Normalized]] are worn for '''all distance vision activities''' {{smaller|''(except night driving, see below)''}}. [[Differentials]] are worn, '''exclusively''', for close-up work with a fixed [[focal distance]]. Most of the time this is a screen.

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A mild plus lense of +0.25 may be useful in [[low myopia]] as [[normalized]], but if you have any more than -1.50 diopters of myopia, don't even think about it. If you don't understand how plus lenses work, don't think about using plus lenses because you're wasting your time {{awesome}}

==How do I find Active Focus?==

See [[Guide:How to find Active Focus]], [[Community:A Million Ways To Find Active Focus|A Million Ways To Find Active Focus]], and the [[Active Focus]] article itself.

@@ Line 61: / Line 61: @@
 ==Glasses and lenses==
+===What is the difference between normalized and differentials?===
+[[Normalized]] are [[distance vision]] glasses. They are typically undercorrected from [[20/20]] (what an [[optometrist]] would give you) by no more than '''0.25 diopters'''. Exceptions are made, usually in the 7+ diopter range. In the majority of cases, reducing any more than 0.25 diopters can be severly counterproductive.
+[[Differentials]] are glasses used exclusively for [[close-up]]. This is usually for monitors and screens. These glasses are '''severely undercorrected''' for any distance vision, and correct you just enough to see the screen at a comfortable distance. Differentials should provide a [[blur horizon]] that is comfortable.
+The majority of effective improvements will always come from distance vision and normalized glasses, combined with good habits.
 ===When do I wear normalized, when do I wear differentials?===
 [[Normalized]] are worn for '''all distance vision activities''' {{smaller|''(except night driving, see below)''}}. [[Differentials]] are worn, '''exclusively''', for close-up work with a fixed [[focal distance]]. Most of the time this is a screen.
@@ Line 80: / Line 86: @@
 A mild plus lense of +0.25 may be useful in [[low myopia]] as [[normalized]], but if you have any more than -1.50 diopters of myopia, don't even think about it. If you don't understand how plus lenses work, don't think about using plus lenses because you're wasting your time {{awesome}}
 ==How do I find Active Focus?==
 See [[Guide:How to find Active Focus]], [[Community:A Million Ways To Find Active Focus|A Million Ways To Find Active Focus]], and the [[Active Focus]] article itself.