Your precious eyes are your window to the world and they want comfortable lenses. Clex are high quality lenses that devlier all-aroung comfort to your eyes.Clex eyeglass lenses will always give you a clear and refreshing view.lf you want the highest quality, choose Clex.Now Korea Optical Co.,Ltd. supplies Clex-the clearest lenses in the world.Korea Optical Co., Ltd. is a pleased to take this opportunity to introduce ourselves to you.Korea Optical Co., Ltd. is a serving our customers with a variety of items and fast delivery for any kind of lenses such as spheric, aspheric, progressive lenses and Rx lenses as well as photo-chromic lenses and polarized lenses.We always maintain high quality and will do our best for fast delivery and being credit-worthy for the customers.