Current Developments in Corneal Topography and Tomography

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Kanclerz , P , Khoramnia , R & Wang , X 2021 , ' Current Developments in Corneal Topography and Tomography ' , Diagnostics , vol. 11 , no. 8 , 1466 . https://doi.org/10.3390/diagnostics11081466

Title: Current Developments in Corneal Topography and Tomography
Author: Kanclerz, Piotr; Khoramnia, Ramin; Wang, Xiaogang
Contributor organization: Department of Ophthalmology and Otorhinolaryngology
Date: 2021-08
Language: eng
Number of pages: 13
Belongs to series: Diagnostics
ISSN: 2075-4418
DOI: https://doi.org/10.3390/diagnostics11081466
URI: http://hdl.handle.net/10138/335360
Abstract: Introduction: Accurate assessment of the corneal shape is important in cataract and refractive surgery, both in screening of candidates as well as for analyzing postoperative outcomes. Although corneal topography and tomography are widely used, it is common that these technologies are confused. The aim of this study was to present the current developments of these technologies and particularly distinguish between corneal topography and tomography. Methods: The PubMed, Web of Science and Embase databases were the main resources used to investigate the medical literature. The following keywords were used in various combinations: cornea, corneal, topography, tomography, Scheimpflug, Pentacam, optical coherence tomography. Results: Topography is the study of the shape of the corneal surface, while tomography allows a three-dimensional section of the cornea to be presented. Corneal topographers can be divided into large- and small-cone Placido-based devices, as well as devices with color-LEDs. For corneal tomography, scanning slit or Scheimpflug imaging and optical coherence tomography may be employed. In several devices, corneal topography and tomography have been successfully combined with tear-film analysis, aberrometry, optical biometry and anterior/posterior segment optical coherence tomography. Conclusion: There is a wide variety of imaging techniques to obtain corneal power maps. As different technologies are used, it is imperative that doctors involved in corneal surgery understand the science and clinical application of devices for corneal evaluation in depth.
Subject: cornea
topography
tomography
optical coherence tomography
keratograph
scheimpflug imaging
pentacam
OPTICAL COHERENCE TOMOGRAPHY
SKEW RAY AMBIGUITY
ASTIGMATISM MEASUREMENTS
KERATOCONUS DETECTION
6 ABERROMETERS
LENS EXCHANGE
PLACIDO-DISC
SCHEIMPFLUG
REPEATABILITY
ANTERIOR
3125 Otorhinolaryngology, ophthalmology
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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