soji
soji
26-04-2017
Chemistry
contestada
Why is refraction so important in eyeglasses.
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nerdybandgirl
nerdybandgirl
26-04-2017
Normally glass correct the focus of your eyes making a light concentrate where your receptor is in your eyes. Lens have an optic relations that are based on refraction index that set positions of focus as a function of indexes.
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XDTRiXZZY
XDTRiXZZY
03-05-2017
cause if it's not there the prescription will be wrong or not be right or could damage eyes
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