title: Bifocal glasses.
mesh_terms: D002386:Cataract / Q000628:therapy; D005139:Eyeglasses; D006801:Humans; D009216:Myopia / Q000628:therapy; D011305:Presbyopia / Q000628:therapy; D013285:Strabismus / Q000628:therapy; D014786:Vision Disorders / Q000628:therapy