Mastering the Techniques of IOL Power Calculations, Second Edition

Ashok Garg, MS, PhD, is Chairman and Medical Director of the Garg Eye Institute & Research Centre, Hisar, India. J.T. Lin, PhD, is currently the Director of New Vision, Inc. in Rochester, NY. He designed the world most compact Excimer system for PRK/LASIK (in 1993), the world's first tunable IR-laser from OPO/KTP (1990) and the first diode-pumped green laser from NYAB (in 1989). Lin holds over 30 international patents in laser systems and surgical methods. Robert Latkany, MD, is the founder and director of the Dry Eye Clinic at the New York Eye and Ear Infirmary as well as the Dry Eye Center of New York, the first center in the area devoted to dry eye disorders. Jerome Bovet, MD, practices at Clinique de l'Oeil in Geneva, Switzerland. Wolfgang Haigis, PhD, is Assistant Professor of ophthalmic Biometry, Faculty of Medicine, University of Wuerzburg, Germany.

Section 1: Preliminary Considerations and Various IOL Power Calculation Formulas and Basics1.Schematic Eye3Athiya Agarwal, Amar Agarwal, Ashok Garg (India)2.A-scan Biometry5Sunita Agarwal, Amar Agarwal, Ashok Garg (India) 3.Corneal Topography10Athiya Agarwal, Sunita Agarwal, Amar Agarwal, Nilesh Kanjani (India)4.Optical Corneal Tomography21Sandra Franco, Jose B Almeida (Portugal), Manuel Parafita (Spain)5.Optical Biometry with IOL Master (Partial Coherence Interferometry)24Ashok Garg (India)6.Anterior Chamber Depth in IOL Power Estimation26Aravind R Reddy (UK)7.How to Calculate the Constant A28Sonja Hairer, Tom Conze, Jerome Bovet (Switzerland)8.Axial Length Dependence of IOL Constants31Wolfgang Haigis (Germany)9.IOL Calculations: When, How and Which?36Kumar J Doctor, Nita Shanbhag, Sumita Karandikar, Pooja Deshmukkh (India)10.How to Measure a Correct Central Keratometric Reading for IOL Power Calculation after LASIK Surgery?46Lung-Kun Yeh, I-Jong Wang (Taiwan)11.An Update on IOL Power Calculation Formulas51JT Lin (Taiwan), Ashok Garg (India)12.The New IOL Formulas based on Gaussian Optics62JT Lin (Taiwan)13.Classical vs Modern Formulas for Estimated Lens Position (ELP)70JT Lin (Taiwan)14.IOL Power Calculations75Kenneth J Hoffer (Santa Monica, CA, USA)15.The Theoretical Summary of IOL Formulas92JT Lin (Taiwan)16.Error Analysis of IOL Power Calculations101JT Lin (Taiwan)17.The Basics of Accommodating IOLs106JT Lin (Taiwan)18.IOL Calculation in Long and Short Eyes114Wolfgang Haigis (Germany)19.Customization of IOL Formulas121B Vineeth Kumar (UK) Section 2: IOL Power Calculations in Cataract Surgery 20.Intraocular Lens Power Selection for Children127Rupal H Trivedi (USA), M Edward Wilson Jr (USA)21.Age Dependent IOL Power Calculations for Pediatric Patients136JT Lin (Taiwan)22.History & Method of Intraocular Lens Power Calculation for Cataract Extraction Surgery after Corneal Refractive Surgery142Alberto Artola Roig, Jorge L Alio Y Sanz (Spain)23.Intraocular Lens Power Calculations in Phaco and Microphaco146Ashok Garg (India), Arif Adenwala (UAE)24.Intraocular Lens Power Calculations for High Myopia153Renyuan Chu, Jinhui Dai (China)25.Accuracy of Intraocular Lens Power Calculation in Bimanual Microphacoemulsification159Gian Maria Cavallini, Luca Campi, Giovanni Neri (Italy)26.Clinical Outcomes of Cataract Surgery after Previous Refractive Surgery164Frank J Goes (Belgium)Section 3: IOL Power Calculations in Refractive Surgery (Corneal and Lenticular Refractive Surgery)27.IOL Power Calculations: A Topographic Method175Frederic Hehn (France)28.IOL Power Calculation in Post-hyperopic PresbyLASIK Cataract: Preliminary Results180Roberto Pinelli (Italy)29.Comparison of Methods for IOL Power Calculation after Incisional and Photoablative Refractive Surgery184Antonio Calossi, Massimo Camellin (Italy)30.IOL Power Calculations after Corneal Refractive Surgery205Srinivas K Rao (India), Arthur Cheng, Dennis SC Lam (China)31.The Latkany Regression Formula for Intraocular Lens Calculations after Myopic Refractive Surgery213Evelyn Icasiano, Robert Latkany (USA)32.The Latkany Regression Formula for Intraocular Lens Calculations after Hyperopic Refractive Surgery218Evelyn Icasiano, Robert Latkany (USA)33.Which IOL Formula to Use after Refractive Surgery221Sonja Hairer, Tom Conze, Jerome Bovet (Switzerland)34.Intraocular Lens Power Calculation after Advanced Surface Ablations (ASA)225Tsiklis NS, Kymionis GD, Portaliou DM, Pallikaris IG (Greece)35.The Mathematics of LASIK231JT Lin (Taiwan)36.Preoperative Evaluation of the Anterior Chamber for Phakic IOLs with the AC OCT238Georges Baikoff (France)37.Biometry for Refractive Lens Surgery244Mark Packer, I Howard Fine, Richard S Hoffman (USA)38.IOL Power Calculations in Phakic IOLs252Dimitrii Dementiev, Kukrenkov Vetchiaslav (Italy)38.Raytracing Analysis of Accommodating IOL254Yoshiaki Nawa (Japan)40.Analysis of Dual-optics Accommodating IOLs259JT Lin (Taiwan)41.Aspherical IOL Analysis265JT Lin (Taiwan)Section 4: Miscellaneous (Recent Advances and IOL Power Calculations in Difficult Situations)42.Determining Corneal Power for Intraocular Lens Calculations in Patients with Corneal Scarring and Irregular Astigmatism277Mujtaba A Qazi, Irwin Y Cua, Jay S Pepose (USA)43.IOL Calculation in Hyperopes281Wolfgang Haigis (Germany), Frank J Goes (Belgium)44.Consistent IOL Calculation in Normal and Odd Eyes with the Raytracing Program OKULIX285Paul Rolf Preussner (Germany)45.A-scan in Difficult Situations292Anand A Shroff (India)46.Management of Refractive Surprises after Cataract Surgery305Armando Capote, Eneida de la C Perez, Marcelino Rio (Cuba)47.Intraocular Lens Power Calculation in the High Myopic Eye314Fengju Zhang, Yan Wang (China)48.Calculation of Intraocular Lens Power in Cataract with Silicone Oil Eyes318Fengju Zhang, Yan Wang (China)49.Intraoperative IOL Power Calculation320Arturo Peréz-Arteaga (Mexico)50.ZEMAX Raytracing Method for Accommodative IOL327JT Lin (Taiwan), Minshan Jiang (China)51.Problems of IOL Power Calculation in Pediatric Cataract Surgery331Marek E Prost (Poland)52.Intraocular Lens Calculation after Prior Refractive Surgery337Kenneth J Hoffer (Santa Monica, CA, USA)53.Cataract Surgery: Calculating the IOL Power in Case of Anisometropia345Laure Gobin, Jos J Rozema, Marie-José Tassignon (Belgium)54.Review of IOL Power Calculation: A Theoretical Analysis of Proposed Formulas356Laure Gobin, Jos J Rozema, Marie Jose Tassignon (Belgium)55.IOL Power Calculation for Cornea Triple and Penetrating Keratoplasty with IOL Exchange368Ashok Sharma (India)56.IOL Power Calculations in Eyes with Irregular Corneas371Barun K Nayak, Sunil Moreker (India)Index