Friday, November 3, 2017

Prism Glasses



As weird as these glasses look they actually have a valuable purpose and they almost always work for the variety of vision problems they're supposed to correct. These glasses help correct :
Double vision
Blurred vision
Missing rows while reading
And headaches related to vision issues

People are tested to decide what prescription they need for the lenses of these glasses just like regular glasses. But unlike ordinary eyeglasses, prism glasses help people who lack depth perception which causes double vision and other uncommon distortions of vision.


The prism glasses help correct this problem because the prism shape allows light to pass between the positive prism lense and the negative prism lens. Basically, light enters the first prism as white light and exits as a rainbow, then the light enters the second prism as a rainbow and leaves as a white light. This process helps the eyes focus on objects better and cancels out the distorted vision caused by the weaker eye.

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