THE BELGIAN OPHTHALMIC ASSOCIATIONS
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This abstract is assigned to session BOG-SBO: Glaucoma / Glaucome
| Title | Clinical evaluation of the new dynamic rebound tonometer ICARE®. |
| Abstract Nr. | 170 |
| Purpose | To evaluate prospectively the intra- and interobserver variability of IOP measurements with the rebound tonometer Icare® and their correlations with Goldmann applanation tonometry (GAT) and central corneal thickness (CCT). |
| Methods | 3 consecutive IOP measurements were performed in a masked fashion by 3 different observers with Icare® in 54 normal subjects and 50 hypertensive/glaucomatous patients (GL) (IOP>22 mmHg with GAT). GAT was done by the same clinician. In all the 50 normals and the first 25 GL, Icare® measurements were followed by GAT. In the other 25 GL, the reverse sequence was respected with GAT first and then Icare® after 20 minutes break to exclude tonographic effect. CCT measurements were performed with Pachette™ ultrasonic pachymetry. |
| Results | Intraobserver Icare® variability was comparable for each observer in the 2 groups. Mean coefficient of interobserver variability was 6.4% in normals and 6.6% in GL. Icare® slightly overestimated IOP comparatively with GAT in normals (range: 1.5 to 2.2 mmHg),proportional to GAT measurements. No significant difference was found between Icare® and GAT in GL. IOP measurements were not influenced by the followed sequence. Icare® correlations with CCT were only significant in right eyes. |
| Conclusion | Intra-and interobserver variability of Icare® measurements is low and comparable with GAT. Icare® measurements are in good concordance with GAT. Due to discrepancy between Icare® and GAT in normals, it is advisable to control Icare® values >24 mmHg with GAT. Icare® measurements appeared to be influenced by CCT. |
Author 1
| Last name | POURJAVAN |
| Initials | S |
| Department | UCL |
| City | Bruxelles |
Author 2
| Last name | Jamart |
| Initials | J |
| Department | UCL |
| City | Montgodinne |
Author 3
| Last name | DETRY |
| Initials | M |
| Department | UCL |
| City | Bruxelles |
Author 4
| Last name | CHARLIER |
| Initials | L |
| Department | UCL |
| City | Bruxelles |
Author 5
| Last name | DETHINNE |
| Initials | B |
| Department | UCL |
| City | Bruxelles |
Author 6
| Last name | DETRY |
| Initials | MB |
| Department | UCL |
| City | Bruxelles |
Author 7
| Last name | LEDOUX |
| Initials | A |
| Department | UCL |
| City | Bruxelles |