Toss the reading glasses?
D003315:Cornea; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects; D007646:Keratotomy, Radial / Q000379:methods*; D008875:Middle Aged; D011305:Presbyopia / Q000532:radiotherapy*; D000078702:Radiofrequency Therapy