Many people have the habit of putting their sunglasses over their hair when they are not using them. This habit can, unfortunately, damage your protective lenses, especially if the lenses have AR coating. The natural oils in your hair can affect and dirty the lenses, forcing you to constantly clean them and causing extra use of the lens coatings. You should always protect your expensive sunglasses from small children and never lay them down with the lenses face down on the surface. Proper care and our tips will help you take better care of the lenses and extend the life of your new purchase.