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Cover Art
E-RESOURCE
Author Corbett, Melanie.

Title Corneal Topography [electronic resource] : Principles and Applications / Melanie Corbett, Nicholas Maycock, Emanuel Rosen, David O'Bart.

Published Cham : Springer, 2019.

Copies

Location Call No. Status
 UniM INTERNET resource    AVAILABLE
Edition 2nd ed.
Physical description 1 online resource (288 p.)
Series Springer Medicine eBooks 2019 English+International
Notes Description based upon print version of record.
Contents Intro; Contents; Part I: Basic Principles; 1: Assessment of Corneal Shape; History of Corneal Topography; Description of Corneal Shape; Corneal Height or Elevation; Surface Slope; Radius of Curvature; Global (Axial/Sagittal) Radius of Curvature; Local (Instantaneous/Tangential) Radius of Curvature; Corneal Power; Methods of Measurement; Reflection-Based Methods; Projection-Based Methods; Applications of Corneal Topography; The Normal Cornea and Corneal Disease; Contact Lens Fitting; Corneal and Refractive Surgery; Suitability of Topography Systems; Situation; Cornea; Measurements
Presentation and UseReferences; *References Particularly Worth Reading; 2: Videokeratoscopes; Optics of Convex Mirrors; Reflection from the Cornea; Keratometry; Photokeratoscopy; Computer-Assisted Videokeratoscopy; Hardware; Cone of Mires; Alignment and Focusing; Image Capture; Software; Digitisation; Image Analysis; Reconstruction Algorithms; Accuracy; Checks and Editing; Display of Results; References; *References Particularly Worth Reading; 3: Projection-Based Systems; The Principle of Projection; Advantages of Projection-Based Systems; Measurement of Corneal Height
Irregular and Non-reflective SurfacesEntire Corneal Coverage; High Resolution and Accuracy; Disadvantages of Projection-Based Systems; Influence of Tear Fluid; Lack of Standardised Presentation Formats; Slit Photography; Rasterstereography; Moiré Interference; Laser Interferometry; References; * References Particularly Worth Reading; 4: Scheimpflug Camera-Based Systems; Introduction; The Scheimpflug Principle; Scheimpflug-Based Systems; Single Scheimpflug Imaging; Dual Scheimpflug Imaging; Integration of Placido Topography; Advantages of Scheimpflug-Based Systems
Disadvantages of Scheimpflug-Based SystemsOther Applications; Corvis® ST; References; 5: Presentation of Topographic Information; Measurements; Raw Image; Height; Slope and Curvature; Power; Displays; Two-Dimensional Maps; Colours; Scales; Absolute/Standardised Scale; Normalised/Relative Scale; Adjustable Scale; Overlays; Semitransparent Map; Pupil; Grids; Optical Zones; Axes; Orthogonal Axes; Zonal Axes; Instantaneous Axes; Three-Dimensional Representations; Three-Dimensional Wire Net; Cross Sections; Height Cross Sections; Refraction Profile; Isometric Map; Multiple Displays; Serial Maps
Difference MapsTailored Displays; Numeric and Statistical Displays; Cursor Box; Numeric Map; Statistical Indices; Simulated Keratometry Readings; Sphero-Equivalent Power; Asphericity; Surface Asymmetry Index; Inferior-Superior Value; Keratoconus Prediction Index; Surface Regularity Index; Potential Visual Acuity; Optical Aberrations; Interpretation; Application of Basic Principles; Pattern Recognition; Neural Networks; References; *References Particularly Worth Reading; Part II: The Normal Cornea; 6: Normal Topography; Normal Corneal Shape; Corneal Anatomy and Optics; Anterior Corneal Surface
Notes Posterior Corneal Surface
Summary The new edition of this leading text atlas on corneal topography has been updated to include the latest advances in technology, such as Pentacam and Orbscan. The principles and theory underlying each technology are first clearly explained, and clinical applications are then examined. The authors describe how to use the different technologies and devices, explain the clinical readout with illustrations of normal corneal topography, discuss applications and findings in common disease states, and present the appearances after various corneal surgical procedures. The pros and cons of each system are highlighted. This up-to-date, superbly illustrated book is the most comprehensive guide to corneal topography currently available. It is anticipated that this second edition will become the seminal corneal topography textbook for all with an interest in corneal disease and its management, and refractive surgery.
Other author Maycock, Nicholas.
Rosen, Emanuel.
O'Brart, David.
SpringerLink issuing body.
Subject Corneal topography.
Cornea -- Measurement.
Cornea -- Surgery.
Electronic books.
Electronic books.
ISBN 9783030106966
3030106969
Standard Number 10.1007/978-3-030-10