title: Update on refractive surgery.
authors.forename: Elmer Y
authors.initials: EY
authors.lastname: Tu
mesh_terms: D000075202:Contraindications; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D054018:Lasers, Excimer; D018903:Photorefractive Keratectomy; D011182:Postoperative Care; D016896:Treatment Outcome; D014481:United States