Two simple ways of cleaning eyeglasses lenses!

[glasses store]

You may find that it’s difficult to clean then dots up if they attach on lenses firmly, here I have to simple ways just for suggestion: one is you can use special detergent, just daub little on your lenses, then cleanse it with a piece of soft cloth; and the second one, you can try ultrasonic washing machines if there are dots on the lens that you can't remove it by that way, and what’s more, you can find them in many local glasses stores.