Hundreds of people ask the same questions every summer, “can you replace sunglass lenses?” Chances are their sunglasses fell off at the beach and the gritty sand scratched up the lenses, or perhaps they simply sat on them, causing one of the lenses to fall out. Thankfully for these unlucky folks, not can you replace sunglass lenses, but replacing sunglass lenses is also easy. Yet, what many people don’t know is that it’s a good idea to replace sunglass lenses every couple of years, regardless of how undamaged they may be. The simple fact of the matter is that if…