Back to Search
Start Over
Comparison of central corneal thickness measurements with a rotating scheimpflug camera, a specular microscope, optical low-coherence reflectometry, and ultrasound pachymetry in keratoconic eyes.
- Source :
-
Seminars in ophthalmology [Semin Ophthalmol] 2015 Mar; Vol. 30 (2), pp. 105-11. Date of Electronic Publication: 2013 Oct 30. - Publication Year :
- 2015
-
Abstract
- Objective: To compare central corneal thickness (CCT) measurements with a rotating Scheimpflug camera (RSC), noncontact specular microscopy (SM), optical low-coherence reflectometry (OLCR), and ultrasonic pachymetry (UP) in keratoconus (KC) patients.<br />Method: In this prospective study, four CCT measurements taken with an RSC, SM, OLCR, and UP were compared in 81 eyes of 44 consecutive KC patients. The KC patients were divided into four subgroups according to Amsler-Krumeich's KC classification.<br />Results: The RSC and UP measurements of the CCT were not statistically significant in all the groups. Comparison of the SM vs. the OLCR measurements yielded statistically significant differences in all the KC patients and in all KC stages. In all the KC patients, RSC and OLCR showed a high correlation coefficient factor (r = 0.87, p = 0.000).<br />Conclusion: CCT measurements with RSC are comparable to those achieved with UP. Compared with the other devices, according to SM measurements, the central cornea is thicker in all keratoconic eyes and in all KC grades, and it is thinner according to OLCR. RSC, UP, SM, and OLCR should not be used interchangeably in keratoconic eyes.
- Subjects :
- Adolescent
Adult
Child
Corneal Pachymetry instrumentation
Female
Humans
Interferometry instrumentation
Male
Microscopy instrumentation
Organ Size
Photography instrumentation
Prospective Studies
Young Adult
Cornea pathology
Diagnostic Techniques, Ophthalmological instrumentation
Keratoconus diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 1744-5205
- Volume :
- 30
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Seminars in ophthalmology
- Publication Type :
- Academic Journal
- Accession number :
- 24171806
- Full Text :
- https://doi.org/10.3109/08820538.2013.833264