title: A-scan (amplitude ultrasonography) measurement.
authors: Northeast Ohio Surgeons, Kent, Ohio, USA.
authors: J E
authors: JE
authors: Krimmer
mesh_terms: D001699:Biometry / Q000295:instrumentation / Q000379:methods*; D002386:Cataract / Q000000981:diagnostic imaging*; D002387:Cataract Extraction; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation; D006801:Humans; D011300:Preoperative Care / Q000379:methods; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods*