Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Corneal Hysteresis and Corneal Resistance Factor in Keratoectasia: Findings Using the Reichert Ocular Response Analyzer

Corneal Hysteresis and Corneal Resistance Factor in Keratoectasia: Findings Using the Reichert... Aim: To examine corneal hysteresis (CH) and corneal resistance factor (CRF) in normal and ectatic corneas. Methods: CH and CRF were measured using the Reichert Ocular Response Analyzer in patients with clinically diagnosed keratoconus (KC), forme fruste KC (FFKC) and normal eyes. Results: 21 eyes (13 patients) with clinically diagnosed KC and 30 eyes (18 patients) with FFKC were included in the study. Mean CH and CRF in FFKC did not differ from that in pachymetry-matched normal eyes. KC eyes had significantly lower CH and CRF than normal and FFKC eyes. Conclusion: A significant overlap in CH and CRF values among the 3 groups was evident. Our findings do not indicate a role for CH and CRF measurement as a single test to aid in the detection of early ectasia. It may be of use when used in conjunction with other parameters such as aberrometry. CH and CRF values may prove to be useful in monitoring ectasia progression. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ophthalmologica Karger

Corneal Hysteresis and Corneal Resistance Factor in Keratoectasia: Findings Using the Reichert Ocular Response Analyzer

Loading next page...
 
/lp/karger/corneal-hysteresis-and-corneal-resistance-factor-in-keratoectasia-0x4drkIN4x

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Karger
Copyright
© 2008 S. Karger AG, Basel
ISSN
0030-3755
eISSN
1423-0267
DOI
10.1159/000145333
Publisher site
See Article on Publisher Site

Abstract

Aim: To examine corneal hysteresis (CH) and corneal resistance factor (CRF) in normal and ectatic corneas. Methods: CH and CRF were measured using the Reichert Ocular Response Analyzer in patients with clinically diagnosed keratoconus (KC), forme fruste KC (FFKC) and normal eyes. Results: 21 eyes (13 patients) with clinically diagnosed KC and 30 eyes (18 patients) with FFKC were included in the study. Mean CH and CRF in FFKC did not differ from that in pachymetry-matched normal eyes. KC eyes had significantly lower CH and CRF than normal and FFKC eyes. Conclusion: A significant overlap in CH and CRF values among the 3 groups was evident. Our findings do not indicate a role for CH and CRF measurement as a single test to aid in the detection of early ectasia. It may be of use when used in conjunction with other parameters such as aberrometry. CH and CRF values may prove to be useful in monitoring ectasia progression.

Journal

OphthalmologicaKarger

Published: Jan 1, 2008

Keywords: Hysteresis; Corneal resistance factor; Ocular aberrations

There are no references for this article.