UID:
almahu_9949863659202882
Format:
1 online resource (1000 pages)
Edition:
1st ed.
ISBN:
9783031506666
Series Statement:
Essentials in Ophthalmology Series
Note:
Intro -- Foreword -- Preface -- Acknowledgments -- Contents -- Part I: Introduction -- 1: The History of the IOL Power Club: 2005-2025 -- 2004: The Origins of the IOL Power Club-How It All Started -- The Club and By-Laws -- 2005: First IPC Meeting-San Sebastian, Spain, September 6-8, Abba Londres y de Inglaterra Hotel -- First Meeting -- 2006: Second IPC Meeting-Carmel, CA, March 22-25, Pine Inn Hotel -- 2007: First Independent IPC EC Meeting-San Diego, CA April 28 Croce's Restaurant -- 2007: Third IPC Meeting-Århus, Denmark, September 4-6, Hotel Royal -- 2008: Fourth IPC Meeting-St. Pete Beach, FL, November 12-16, Tradewinds Island Grand Resort -- 2009: Second IPC Executive Committee Independant Meeting-St. Helena, CA, April 7-9 -- 2009: Fifth IPC Meeting-Roses, Spain, September 8-11, Vistabella Hotel -- 2010: Sixth IPC Meeting-Venice, Italy, August 30 to September 2 Splendid Hotel -- 2011: Third EC Independent Meeting Santa Monica, CA March 29-April 2 Le Merigot Hotel -- 2011: Seventh IPC Meeting-Würzburg, Germany, September 22-25 Steinberg Schloss Hotel -- 2012: Eighth IPC Meeting-Memphis and Nashville, TN, April 25-29, The Hermitage Hotel, Nashville, The Peabody Hotel, Memphis -- 2013: Ninth IPC Meeting-Haarlem, the Netherlands, October 9-12, Amrâth Grand Hotel Frans Hals -- First IPC Member Business Meeting -- 2014: Tenth IPC Meeting-Fort Lauderdale, FL, October 8-11, Il Lugano Hotel and Pelican Grand Hotel -- 2015: 11th IPC Meeting-San Sebastian, Spain, September 9-12, Londres Hotel -- 2016: 12th IPC Meeting-New Orleans, LA, May 10-13 Royal Sonesta Hotel -- 2017: 13th IPC Meeting-Athens, Greece, September 8-16 Grand Britannia Hotel -- 2018: 14th IPC Meeting-St. Pete Beach, FL, October 22-25 Tradewinds Island Grand Resort -- 2018: ESCRS-IPC IOL Power Calculation Course, September 23, Vienna, Austria.
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2019: IPC EC Fourth Independant Meeting-La Jolla, CA, May 6-7 La Valencia Hotel -- 2019: 15th IPC Meeting-Napa, CA, October 8-11, Archer Hotel -- 2021: 16th IPC Meeting-Carmel, CA, July 28-31 Pine Inn Hotel (Site of our Second Meeting in 2006) -- 2022: 17th IPC Meeting-Stresa, Italy, September 21-24 Princess Regina Hotel -- 2023: 18th IPC Meeting-Palm Springs, CA, November 8-11 Hotel Zoso Palm Springs -- 2024: 19th IPC Meeting-Rockland, ME, April 9-12 Rockland Harbor Hotel, Maine Lighthouse Museum and Farnsworth Museum -- 2025: 20th Anniversary IPC Meeting-Santa Barbara, CA, April 29-May 2 -- 2: American History of IOL Power Calculation -- Introduction -- Personal Ultrasound History -- First American Ultrasound IOL Power Calculation -- Personal Formula History -- Earliest Calculators and Computers -- The First Dedicated IOL Power A-Scan: The Invention of the Applanation Method -- Early IOL Power Studies -- The EyeLab -- Ultrasound Velocities for Axial Length Measurement -- Getting the Word Out -- Conclusion -- References -- Part II: Basic Science -- 3: Gaussian Optics -- Fundamental Hypotheses -- Classical Study in Paraxial Optics -- Paraxial Trace Through a Spherical Surface -- Lagrange-Helmholtz Relation -- Centered System -- Principal Points and Focal Lengths -- Nodal Points -- Relation of Conjugation and Transverse Magnification -- Dioptric Power -- Magnification -- Combination of Two Systems -- Single Lens -- Entrance and Exit Pupils -- Matrix Method in Paraxial Optics -- Elementary Matrices -- (a) Vergence of a Spherical Surface -- (b) Refraction Matrix -- (c) Translation Matrix -- Centered Systems -- (a) Transfer Matrix of a Centered System -- (b) Vergence of a Centered System -- (c) Conjugate Matrix -- (d) Homographic Relation -- Cardinal Elements -- Limits of Paraxial Approximation for the Eye -- Schematic Eye -- References.
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4: Exact Optics -- Introduction -- Optical Materials and Geometry -- The Index of Refraction -- Beyond Paraxial Optics -- Seidel Aberrations -- Wavefront Aberrations -- Wave Optics for Image-Forming Optical Systems -- The Quality of an Optical System -- Conclusions -- References -- 5: Pseudophakic Eye Models -- Introduction -- Schematic Eye Models -- Paraxial Models -- Reduced Paraxial Models -- Simplified Paraxial Models -- Exact Paraxial Models -- Finite Eye Models -- Comparison of Finite Model Eyes -- Computational Eye Models -- Pseudophakic Eye Models -- Personalized Pseudophakic Eye Models -- IOL Power Calculation -- Pseudophakic Finite Element Models -- Physical Eye Models -- Conclusions -- References -- 6: Data Analysis in IOL Power Calculations -- Designing the Sample to be Analyzed -- Selecting the Data to be Reported -- Analyzing the Data -- References -- 7: Demographics of Biometry -- Introduction -- Methods -- Results -- Sex-Related Differences -- Racial Differences -- Age-Related Trends -- Corneal Astigmatism -- Correlation Among Biometry Variables -- Inter-Eye Variation -- Conclusion -- References -- Part III: Measurements -- 8: Clinical Refraction -- Basic Clinical Refraction -- Key Points in Subjective Refraction -- Refraction in the Presence of a Monofocal IOL -- Refraction in the Presence of Multifocal IOLs -- Refraction in the Presence of Extended-Depth-of-Focus (EdoF) IOL -- Summary -- References -- 9: Ultrasound Biometry -- Basic Principles of A-Scan Echography -- Measurement Technique -- Immersion Technique -- Contact Technique -- A-Scan Pattern of the Phakic Eye -- Identifying the Echospikes -- Setting the Appropriate Velocities -- Errors in Axial Length Measurement and the Final Refraction -- Axial Length Measurement of the Challenging Eye -- The Aphakic Eye -- The Pseudophakic Eye -- The Eye with Silicone-Filled Vitreous.
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Avoiding Errors in Axial Length Measurement -- Avoiding Shorter Axial Length Measurement -- Avoiding Longer Axial Length Measurement -- Detecting Significant Intraocular Pathology -- References -- 10: Optical Biometry -- History of Optical Biometry -- Ultrasound Biometry -- Partial Coherence Interferometry (PCI) -- Ultrasound Biometry vs. PCI -- Concept of PCI -- Optical Low-Coherence Reflectometry (OLCR) -- Advancements of PCI -- Introduction of OCT-Based Biometry -- Time-Domain OCT -- Spectral-Domain OCT -- Swept-Source SD-OCT -- OCT and Dense Cataracts -- Optical Biometry: Cornea -- Intraoperative OCT -- References -- 11: Axial Length Measurement -- Introduction -- Basic Science -- Axial Length Measurements -- Ultrasound (US) Biometry -- Optical Biometry (Interferometry) -- Refractive Indices (RIs) -- Scaling Formulas -- Definitions of Commonly Used Terms. -- Coherence -- Group RI -- History -- Lenstar -- Sum-of-Segments AL -- Segments -- Summary of Segments -- Areas for Potential Improvement -- Chapter Summary -- References -- 12: Technology of SS-OCT Biometer: Argos Biometer -- Background -- Challenges -- Large Coherence Length -- Swept-Source Biometer -- Early Work and Breakthrough -- Argos SS-OCT Biometer -- Basic Performance -- High Success Rate -- ERV Mode -- True Axial Length -- Future of SS-OCT with Tunable VCSEL -- References -- 13: Influence of Anterior Chamber Depth, Lens Thickness, and Corneal Diameter on Intraocular Lens Power Calculation -- Introduction -- Intraocular Lens Power Calculation Formulas -- Performance of Different Formulas -- Refractive Prediction Errors after Cataract Surgery -- Preoperative Evaluation -- Anterior Chamber Depth -- Lens Thickness -- Corneal Diameter -- Agreement Between Measurement Techniques -- Population Means -- Influence of Anterior Chamber Depth on Intraocular Lens Power Calculation.
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Influence of Lens Thickness on Intraocular Lens Power Calculation -- Influence of Corneal Diameter on Intraocular Lens Power Calculation -- The Case of Toric Intraocular Lenses -- Future Perspectives -- References -- 14: Keratometry -- Keratometry -- Instrumentation -- The Calculation of Power from Curvature -- Asphericity and Ray Tracing -- Clinical Studies Using Scheimpflug Data -- Notes on the Stiles-Crawford Effect -- References -- 15: Corneal Topography and Tomography -- Introduction -- Technologies -- Reflection Topography -- Elevation Topography -- Measurements -- Axial and Tangential Radii -- Metrics -- Curvature Metrics -- Elevation Metrics -- Refractive Power Metrics -- Precision and Agreement -- Software -- Surgical Planning Information (Fig. 15.6) -- IOL Calculation -- Toric IOL Calculations -- Post-surgical Analysis -- IOL Selection -- Corneal Optical Quality -- Corneal Anatomical Quality -- IOL Power Calculation -- Important Concepts -- Parameters for IOL Calculations -- Sim K -- Equivalent K Reading (EKR) -- Total Corneal Power -- Radii of Curvature -- Central Corneal Elevation Data -- Corneal Asphericity and Spherical Aberration -- Axis of Reference -- Toric IOL Calculation -- Regular and Irregular Astigmatism -- Measured and Estimated Total Astigmatism -- References -- 16: The A-Scan Biometer -- Basic Technology -- Physical Principles of A-Scan Ultrasound -- Major Components of a Biometer -- The Probe and Its Transducer -- The Sensitivity Setting -- The Velocity Setting -- The Electronic Gates -- Data Analysis and IOL Calculation -- Choosing the Appropriate Ultrasound Biometer -- Commonly Used Ultrasound Biometers -- References -- 17: ZEISS IOLMaster 700 -- Introduction -- SWEPT Source Biometry® -- OCT Technology -- Unique Fixation Check -- Distance Independent Telecentric 3-Zone Keratometry -- Additional Measurements.
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Angle Alpha- and Kappa-Chords.
Additional Edition:
Print version: Aramberri, Jaime Intraocular Lens Calculations Cham : Springer International Publishing AG,c2024 ISBN 9783031506659
Language:
English
Keywords:
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