title: Corneal topographic evaluation of decentration in photorefractive keratectomy: treatment displacement vs intraoperative drift.
authors.forename: S
authors.initials: S
authors.lastname: Xunlun
mesh_terms: D003315:Cornea / Q000473:pathology*; D003316:Corneal Diseases / Q000209:etiology* / Q000473:pathology; D019781:Corneal Topography; D006801:Humans; D007432:Intraoperative Period; D054018:Lasers, Excimer; D008433:Mathematics; D018903:Photorefractive Keratectomy / Q000009:adverse effects*; D011680:Pupil