At last there is a solution for those who need prescription lenses yet want to wear good sunglasses. The OPTX 20/20 is a hydrostatic segment which attaches to the bottom of your sunglass lens with water. It is easy to remove again with water and will re-attach with no damage to either the unit or the sunglass. Available in a wide range of magnifications the OPTX 20/20 is a cheap and easy solution for customers who need magnification to read.