Comparison of Two Different Scheimpflug Devices in the Detection of Keratoconus, Regular Astigmatism, and Healthy Corneas
Joint Authors
Finis, David
Ralla, Bernhard
Karbe, Maria
Borrelli, Maria
Schrader, Stefan
Geerling, Gerd
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-14
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Aim.
The aim of this study was to determine the intra- and interobserver variability of two Scheimpflug based camera systems, Pentacam and Sirius.
In addition, the comparability of the measurements was tested in healthy subjects, subjects with regular astigmatism, and keratoconus patients.
Methods.
Intra- and interobserver variability were assessed in 20 healthy corneas.
Pachymetry values were also compared with ultrasound pachymetry as a reference measurement.
To detect possible differences between the two devices, 82 eyes with clinically established keratoconus, 30 eyes with regular astigmatism (>1.5 D), and 60 eyes without corneal pathologies were included in this prospective study.
Results.
Pachymetry and keratometry showed good intra- and interobserver variability for both devices.
Pachymetry values obtained with the Sirius system ( 579 ± 58 μm) were significantly higher compared to the Pentacam system ( 551 ± 40 μm, P < 0.001 ) and to ultrasound pachymetry ( 550 ± 43 μm, P < 0.001 ).
Significant interdevice differences were found regarding the majority of the detected keratometry parameters.
Conclusions.
Both devices show almost perfect reproducibility in healthy subjects.
However, pachymetry and keratometry values of the two devices should not be used interchangeably.
American Psychological Association (APA)
Finis, David& Ralla, Bernhard& Karbe, Maria& Borrelli, Maria& Schrader, Stefan& Geerling, Gerd. 2015. Comparison of Two Different Scheimpflug Devices in the Detection of Keratoconus, Regular Astigmatism, and Healthy Corneas. Journal of Ophthalmology،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1069696
Modern Language Association (MLA)
Finis, David…[et al.]. Comparison of Two Different Scheimpflug Devices in the Detection of Keratoconus, Regular Astigmatism, and Healthy Corneas. Journal of Ophthalmology No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1069696
American Medical Association (AMA)
Finis, David& Ralla, Bernhard& Karbe, Maria& Borrelli, Maria& Schrader, Stefan& Geerling, Gerd. Comparison of Two Different Scheimpflug Devices in the Detection of Keratoconus, Regular Astigmatism, and Healthy Corneas. Journal of Ophthalmology. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1069696
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069696