Abstract
The growth of keratorefractive surgery has stimulated development in corneal topography. The present-day videokeratoscope, or corneal topographer, evolved from the keratometer. Modern corneal topographers use several different approaches, including Placido disk and grid-style reflections, slit scanning tomography, Scheimpflug optics, and interferometry/optical coherence tomography. Topographic and tomographic devices can display axial or tangential curvature, refractive power, elevation, and pachymetry. Quantitative data can be used to derive topographic indices, which can play an important role in keratorefractive screening. Corneal topography has widespread applications in cataract, refractive, and corneal surgery.
| Original language | English |
|---|---|
| Title of host publication | Cornea, 2-Volume Set |
| Publisher | Elsevier |
| Pages | 111.e1-123 |
| ISBN (Electronic) | 9780323672405 |
| ISBN (Print) | 9780323674720 |
| DOIs | |
| State | Published - 1 Jan 2021 |
Keywords
- Placido disk
- Scheimpflug optics
- corneal topography
- interferometry
- keratometry
- optical biometry
- optical coherence tomography
- reflection-based topography
- slit scanning tomography
- tomographic indices
- topographic indices
- topographic maps
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