02074cam a22003018a 4500991000799969707536100715s2004 nju b 001 0 eng d1556426526 (hardcover : alk. paper)b13913530-39ule_instDip.to Fisicaeng617.7/52422LC RE988617.7Shammas, H. John473299Intraocular lens power calculations /H. John ShammasThorofare, NJ :SLACK,c2004xii, 223 p. :ill. ;26 cmIncludes bibliographical references and indexBasic optics for intraocular lens power calculations -- Historic overview -- Modern formulas for intraocular lens power calculations -- The Olsen formula / Thomas Olsen -- The Haigis formula / Wolfgang Haigis -- The refractive formulas -- Calculating for iseikonia -- Physical principles of A-scan ultrasound / Shane Dunne -- The A-scan biometer -- A-scan biometry -- High precision A-scan biometry using the Kohn immersion shell / Gus Kohn -- Ultrasound measurement of the challenging eye / Pier Enrico Gallenga, Adriano Mancini, and Anastasia di Giovanni -- Avoiding errors in axial length measurement -- Optical biometry using partial coherence interferometry / Wolfgang Haigis -- B-mode guided biometry / Olivier Berg̈s ... [et al.] / Measuring the ultrasound axial length in biphakic eyes / Kenneth J. Hoffer -- Measuring the corneal power -- Intraocular lens power calculations after corneal refractive surgery -- Selecting the proper intraocular lens power -- The unexpected postoperative resultIntraocular lensesEyeAccommodation and refractionRefractive indexMeasurement.b1391353002-04-1415-07-10991000799969707536LE006 617.7 SHA12006000164696le006pE72.80-l- 00000.i1515355115-07-10Intraocular lens power calculations226448UNISALENTOle00615-07-10ma -engnju00