subject: Polarized Replacement Lenses That Protect [print this page] If you are taking your hard earned money and using it for a good quality pair of sunglasses that can be interchanged with many other parts, then what you have done is give yourself a way to customize your own pair of sunglasses and repair them also. Many times we wear sunglasses and put them down or have them fall in between the seats of our car and in the process, scratches have occurred on the lenses. With the polarized replacement lenses that you can buy as an extra item, you will bring the lenses back to original quality along with giving yourself the vision that you need for the sunglasses to handle anything that is in front of you.
Polarized replacement lenses, also known as photochromic lenses, are known for their ability to transition from dark when outdoors to light when indoors. In fact the term is defined as being capable of changing color on exposure to a radiant energy. So how do we know if we have photochromic sunglasses? These types of sunglasses have lenses that have many molecules which are embedded in them, which are transparent to visible light when there is no UV light available. This means that the lenses are going to be light. When UV rays are present, those molecules start to react to it and will start to change shape. When this happens, the molecules absorb some of the visible light, which causes those types of lenses to darken. The brighter the sunlight is, the darker the lenses become.
Many people buy these types of lenses for prescription purposes. When you have a prescription pair of eyeglasses that you need to wear, having polarized lenses put in them will eliminate the need for an extra pair of sunglasses to switch into if you are driving or are going to spend some time outside. These lenses will transition into the darker tint to protect your eyes from sun and also look good doing it.
When looking for these types of lenses make sure that you get the real deal and not some cheap imitation. Many times these lenses, if bought after market they may have a much slower transition from light to dark and will definitely wear down quicker. Getting some of these quality lenses can be as easy as logging onto the Internet and finding one of the many web sites that offer these great polarized replacement lenses that are interchangeable with many of the frames that have that capability.
