Difference between revisions of Guide:How to choose eyeglasses for Endmyopia journey

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{{resize|160%|'''1. Normalized'''}}
===1. Normalized===


The [[Normalized]] (normal or distance use) are glasses slightly reduced from a [[20/20 correction]]. Normalized are used with the [[distance vision]] as main [[Stimulus]] to improve eyesight.
The [[Normalized]] (normal or distance use) are glasses slightly reduced from a [[20/20 correction]]. The Normalized are used with the [[distance vision]] as main [[Stimulus]] to improve eyesight.


{| class="wikitable"
{| class="wikitable"
! Distance !! Under-correction!! Clear vision distance !! Distance vision visual acuity
! Distance !! Under-correction from full correction !! Clear vision distance !! Distance vision visual acuity
|-
|-
| By far in normal use || -0.25D^ || Between 2.67m and 8.00m || 20/25
| By far in normal use || -0.25D^ || Between 2.67m and 8.00m || 20/25
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|}
|}


^ Ideal first under-correction
{{resize|80%|^Ideal first Normalized}}
 
===2. Full Correction===
 
 
The [[20/20 correction]] (full correction rounded to a step of 0.25 D lower) is a correction that you normally get from a licensed optician, who corrects your eyesight to a degree ofvisual acuity only one emmetropic person (or "normal vision") reached on as nellen chart, putting your blur horizon within 0.25 D of the diagram.
 
'''When to use Full Correction?''' From afar when clear vision is needed (when driving or unreadable small print with [[Normalized]] on classroom)
 
===3. Differentials^^ for computer===
The [[Differentials]] (jargon) (near vision, computer glasses or differentials) are glasses or lenses with reduced power for a [[close-up]] work. The differentials just allow you to clearly see what you are working on.
 
{| class="wikitable"
! Distance between your eyes and you computer !! Under-correction from full correction
|-
| Between 72.8cm and 88.8cm || -1.25D
|-
| Between 61.5cm and 72.8cm || -1.50D
|-
| Between 53.3cm and 61.5cm || -1.75D
|-
| Between 47cm and 53.3cm || -2.00D
|}
 
[[Category:Guides]]