Some wear them for a fashion statement. To other, sunglasses are just plain cool. In reality sunglasses are the first line of defense when protecting our eyes from harmful ultraviolet or U-V rays. "If you let too much U-V get through your cornea then you can get certain eye diseases later in life." Melissa Porch is an eye care technician at Ginter Eye Care. She advises only buying sunglasses that offer 100% U-V protection. She says 100% U-V protection offers not only more protection but clearer visibility as well.
All glasses must go through stringent testing. Roy Hartman is a lab technician at Ginter Eye Care. He tests lenses to make sure they offer enough protection against the sun. Hartman tests each lenses to make sure they offer enough protection against the sun.
It's the tint of the lenses that determines which part of the light spectrum is absorbed. Each tint serves a different purpose from creating contrast to reducing glare. If you need prescription sunglasses you can add clip on sunglasses lenses like these ones or you can wear a new type of technology called transition lenses. The lenses darken when you walk outside.
Like the rule of thumb when tanning, it's best to avoid the sun in the middle of the day. The sun's rays are the strongest from 10 a.m. to 2 p.m. So, when the sun is up, make sure your eyes are covered up. For more sun safety tips, ( click here ).