I found that my eyeglasses lenses were too dirty, and I suddenly realized that I haven’t washed them since I bought the eyeglasses 2 months ago. I’ve heard about that improper cleaning could do great harm to the lenses. Then how can I wash them?

use soft cloth to remove the dirty on the surface of the lenses, and then put them under the running water, with the soft cloth gently wipe the dirty spots.