Repeatability and Reproducibility of Intraocular Pressure and Dynamic Corneal Response Parameters Assessed by the Corvis ST
Joint Authors
Vinciguerra, Riccardo
Vinciguerra, Paolo
Ambrósio, Renato
Koprowski, Robert
Lopes, Bernardo T.
Roberts, Cynthia J.
Elsheikh, Ahmed
Reisdorf, Sven
Berger, Stefanie
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-06
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Purpose.
To assess the repeatability and reproducibility of dynamic corneal response parameters measured by the Corvis ST (Oculus, Wetzlar, Germany).
Methods.
One eye randomly selected from 32 healthy volunteers was examined by the Corvis ST.
Three different devices were used in an alternated random order for taking three measurements at each device in each subject.
Standard intraocular pressure (IOP), the biomechanical-compensated IOP (bIOP), and DCR parameters were evaluated.
The within-subject standard deviation (ζw) and coefficient of variation (CV) were assessed.
Results.
Regarding pressure indices, the ζw was below 1 mmHg for repeatability (0.98 for IOP and 0.89 for bIOP) and the CV was 6.6% for IOP and 6.1% for bIOP.
For reproducibility, the ζw was around 1 mmHg (1.12 for IOP and 1.05 for bIOP) and the CV was 7.6% for IOP and 7.1% for bIOP.
Most of DCR indices presented CV for repeatability below 4%.
For reproducibility, the CV of most of the indices were below 6%.
The deformation amplitude (DA) ratio in 1 mm and integrated radius were below 4% (1.2% and 3.8%, resp.).
Conclusions.
The Corvis ST showed good precision (repeatability and reproducibility) for IOP measurements and for DCR in healthy eyes.
American Psychological Association (APA)
Lopes, Bernardo T.& Roberts, Cynthia J.& Elsheikh, Ahmed& Vinciguerra, Riccardo& Vinciguerra, Paolo& Reisdorf, Sven…[et al.]. 2017. Repeatability and Reproducibility of Intraocular Pressure and Dynamic Corneal Response Parameters Assessed by the Corvis ST. Journal of Ophthalmology،Vol. 2017, no. 2017, pp.1-4.
https://search.emarefa.net/detail/BIM-1185489
Modern Language Association (MLA)
Lopes, Bernardo T.…[et al.]. Repeatability and Reproducibility of Intraocular Pressure and Dynamic Corneal Response Parameters Assessed by the Corvis ST. Journal of Ophthalmology No. 2017 (2017), pp.1-4.
https://search.emarefa.net/detail/BIM-1185489
American Medical Association (AMA)
Lopes, Bernardo T.& Roberts, Cynthia J.& Elsheikh, Ahmed& Vinciguerra, Riccardo& Vinciguerra, Paolo& Reisdorf, Sven…[et al.]. Repeatability and Reproducibility of Intraocular Pressure and Dynamic Corneal Response Parameters Assessed by the Corvis ST. Journal of Ophthalmology. 2017. Vol. 2017, no. 2017, pp.1-4.
https://search.emarefa.net/detail/BIM-1185489
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185489