title: Orbscan versus ultrasound.
authors.forename: Nader G
authors.initials: NG
authors.lastname: Iskander
authors.forename: N Timothy
authors.initials: NT
authors.lastname: Peters
mesh_terms: D001837:Body Weights and Measures; D003315:Cornea / Q000000981:diagnostic imaging* / Q000473:pathology*; D019781:Corneal Topography / Q000379:methods; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D054140:Refractive Surgical Procedures; D014463:Ultrasonography