Dedication Acknowledgments About the Author About the Associate Editors Contributing Authors Foreword by Stephen D. Klyce, PhD Introduction Chapter 1Fundamental Concepts in Corneal Imaging Mehdi Roozbahani, MD; Marcony R. Santhiago, MD, PhD; William J. Dupps, MD, PhD; and J. Bradley Randleman, MD Basic Definitions and Terminology Confusing Clinical Concepts Imaging Devices Placido-Based Reflection Devices LED-Based Reflective Devices Tomography-Based Imaging Devices Slit Scanning-Based Tomography Scheimpflug-Based Tomographers Optical Coherence Tomography Very High-Frequency Digital Ultrasound Aberrometers for Wavefront Analysis Summary Chapter 2Corneal Imaging Devices: Applications and Set Up Mehdi Roozbahani, MD; Marcony R. Santhiago, MD, PhD; William J. Dupps, MD, PhD; and J. Bradley Randleman, MD Basic Device Set Up Specific Imaging Devices Placido Topography Scanning Slit Imaging (Orbscan II) Scheimpflug Imaging (Pentacam) Dual Scheimpflug/Placido Imaging (Galilei) Scheimpflug/Placido Imaging (Sirius) Anterior Segment Optical Coherence Tomography Very High-Frequency Digital Ultrasound Imaging Artifacts Summary Chapter 3Basic Topographic Patterns and Tomographic Correlates J.

Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J. Dupps, MD, PhD Notes on Maps in This Section Section 1: Symmetric Nonastigmatic Patterns (Normal Patterns and Variants) Section 2: Symmetric Astigmatic Patterns (Normal Variants) Section 3: Asymmetric Astigmatic Patterns (Suspicious Patterns) Section 4: Abnormal Asymmetric Patterns Against-the-Rule Astigmatism Inferior Steepening Focally Steep Patterns Skewed Radial Axes Asymmetric Bowtie With Skewed Radial Axis Pattern Truncated Bowtie Pattern Vertical D Pattern Drooping D Pattern Pellucid Marginal Degeneration-Like (Crab Claw) Pattern Section 5: Keratometry/Topography Relationship in Ectatic Corneas Chapter 4Epithelial Mapping J. Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J. Dupps, MD, PhD Epithelial Thickness and Remodeling Patterns Section 1: General Epithelial Mapping Images in Normal Eyes Section 2: Epithelial Mapping in Keratoconus Section 3: Epithelial Mapping in Refractive Surgery Screening Section 4: Epithelial Mapping After Refractive Surgery Section 5: Irregular Epithelial Mapping With Corneal Irregularities Chapter 5Corneal Ectasia Evaluations J. Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J.

Dupps, MD, PhD Progressively Advanced Presentations of Corneal Ectasias Section 1: Corneal Ectasia Suspects Section 2: Keratoconus Highly Asymmetric (Clinically Unilateral) Keratoconus Asymmetric Keratoconus Mild Keratoconus Moderate Keratoconus Severe Keratoconus Atypical Keratoconus Images Stable Keratoconus Progressive Keratoconus Corneal Hydrops Section 3: Pellucid Marginal Corneal Degeneration Section 4: Postoperative Corneal Ectasia Chapter 6Corneal Imaging in Refractive Surgery Evaluations J. Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J. Dupps, MD, PhD Note on Screening Recommendations Section 1: Suitable Refractive Surgery Candidates: Normal Imaging and Variants Section 2: Suspicious Imaging in Refractive Surgery Evaluations Section 3: Abnormal Imaging in Refractive Surgery Evaluations Section 4: Ectasia After LASIK Cases: Preoperative Corneal Imaging Chapter 7Postoperative Patterns After Corneal and Refractive Surgery J. Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J. Dupps, MD, PhD Section 1: Keratoplasty Section 2: Incisional Refractive Surgery Section 3: LASIK Section 4: Photorefractive Keratectomy Section 5: Small Incision Lenticule Extraction Section 6: Phakic Intraocular Lens Section 7: Intracorneal Ring Segments Section 8: Orthokeratology Section 9: Corneal Cross-Linking Imaging Section 10: Therapeutic Topography-Guided Ablations Chapter 8Corneal and Refractive Surgery Complications J. Bradley Randleman, MD; Marcony R.

Santhiago, MD, PhD; and William J. Dupps, MD, PhD Section 1: Ablation Issues Section 2: LASIK Flap Complications Section 3: Interface Complications Section 4: Ocular Surface Complications Section 5: Complications After Incisional Refractive Surgery Section 6: Complications After Intracorneal Ring Segments Implantation Section 7: Phakic Intraocular Lens Complications Section 8: Complications After Keratoplasty Chapter 9Clinical/Topographic Correlations J. Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J. Dupps, MD, PhD Section 1: Dry Eye Section 2: Corneal Scarring Resulting From Infectious Keratitis Section 3: Epithelial Basement Membrane Dystrophy Section 4: Salzmann''s Nodular Degeneration Section 5: Pterygium Section 6: Fuchs'' Corneal Dystrophy Section 7: Corneal Stromal Dystrophies Section 8: Limbal Stem Cell Deficiency Section 9: Floppy Eyelid Syndrome Chapter 10Corneal Imaging for Evaluations of Patients With Cataracts J. Bradley Randleman, MD; Marcony R. Santhiago, MD, PhD; and William J. Dupps, MD, PhD Section 1: Routine Cataract Evaluations Section 2: Toric Intraocular Lens Evaluations Section 3: Cataract Evaluations in Patients With Prior Laser Vision Correction Section 4: Cataract Evaluations in Patients With Prior Radial Keratotomy Section 5: Cataract Evaluations in Patients With Keratoconus Financial Disclosures Index.