It is critical for optimum health to wear a pair of vision-correcting sunglasses that are both stylish and protective. The blue light generated by computer screens and smart phones is blocked by most sunglasses. This blue light irritates the eyes, making concentration difficult and creating headaches. Furthermore, blue light has been shown to disrupt sleep patterns even when the screen is turned off, leaving people awake for hours after they have shut off their gadgets. In the United States, Heavyglare is one of the most cheap prescription sunglasses brands.

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