Document Detail


Precision and accuracy of the ICare tonometer - Peripheral and central IOP measurements by rebound tonometry.
MedLine Citation:
PMID:  20840218     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Purpose:  The purpose of this study was to evaluate the ICare tonometers precision and accuracy and the extent to which intraocular pressure (IOP) measurements are influenced by measuring position. Methods:  This was carried out by comparing the central and peripheral ICare-IOP readings and comparing ICare- with the Goldmann applanation tonometer (GAT)-IOP readings. IOP was measured using the ICare rebound tonometer on the right eye of 40 subjects, straight at the centre of the cornea (CS), straight 2 mm from the nasal and temporal limbus (NS and TS), and in 10 degrees nasally and temporally angled positions measured from the same location as CS (NA and TA). The IOP was also assessed with the GAT. Results:  Central IOP (CS) was significantly (p < 0.001) greater than peripheral measurements (NS, TS, NA and TA) by approximately 3-4 mmHg. Centre IOP (CS) significantly overestimated by mean 2 mmHg and the peripheral measurements significantly underestimates approximately 1.4-2 mmHg compared with GAT readings. Conclusion:  The ICare tonometer may be useful in a routine clinical setting for IOP screening, but the ICare measurement is not a substitute for the GAT measurement, when a precise and accurate IOP is desired.
Authors:
Danson V Muttuvelu; Kirsten Baggesen; Niels Ehlers
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Publication Detail:
Type:  Journal Article     Date:  2010-09-15
Journal Detail:
Title:  Acta ophthalmologica     Volume:  90     ISSN:  1755-3768     ISO Abbreviation:  Acta Ophthalmol     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-05-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101468102     Medline TA:  Acta Ophthalmol     Country:  England    
Other Details:
Languages:  eng     Pagination:  322-6     Citation Subset:  IM    
Copyright Information:
© 2010 The Authors. Acta Ophthalmologica © 2010 Acta Ophthalmologica Scandinavica Foundation.
Affiliation:
Department of Ophthalmology, Aalborg Hospital - Århus University Hospital, Denmark.
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