There are certain barriers to effective communication that every organization faces. These potential interruptions of the flow of information are referred to as noise. Communicative problems (i.e., noise) can be categorized into three groups: technical, semantic, or efficacy-related.
What is difference between polarized and non-polarized lenses? A: Polarized lenses have a filter laminated on them that only allows vertically oriented light to pass through, while non-polarized lenses are usually just tinted to block light. Non-polarized lenses do not contain a filter to remove glare. Continue Reading.
1 Polarized lenses reduce or eliminate glare and reflections from the sun. You can have coatings added to the lenses of your sunglasses and block 100% of UV rays.  Go online to check the UV index in your area. Visit the U.S. Environmental Protection Agency's SunWise Program for the latest UV index information.