Titre du document / Document title

Comparison of anterior chamber depth measurements using Orbscan II and IOLMaster

Auteur(s) / Author(s)

FRISCH I. B. ; RABSILBER T. M. ; BECKER K. A. ; REULAND A. J. ; AUFFARTH G. U. ;

Résumé / Abstract

PURPOSE. To To evaluate and compare anterior chamber depth (ACD) measurements using Orbscan II (Bausch & Lomb, Rochester, NY) and lOLMaster (Carl Zeiss Meditec AG, Jena, Germany). METHODS. In this prospective clinical study, the authors measured ACD of 145 phakic eyes of 30 healthy volunteers and 115 patients using Orbscan II and lOLMaster. Average patient age was 52.9±19.4 (range 16 to 87) years. ACD was evaluated from corneal epithelium to anterior lens surface. Additionally, axial length (AL) was measured using the Zeiss lOLMaster to calculate the regression coefficient between AL and ACD. RESULTS. Mean ACD was 3.35±0.43 mm (range 2.01 mm to 4.37 mm) using Orbscan II and 3.36±0.41 mm (range 2.09 mm to 4.24 mm) using lOLMaster. Mean total axial length was 24.04 mm±2.1 mm (range 20.7 mm to 31.41 mm). The linear regression coefficient of ACD between both methods was R=0.95. ACD and AL correlated only slightly (R=0.57). The Spearman coefficients of rank correlation were 0.94 and 0.61, respectively. A p value less than 0.01 (paired Wilcoxon test) was considered statistically significant. However, a significant difference was not calculated comparing ACD measurements using both systems and the Bland-Altman-Plot showed 95% of the differences ranging between 0.25 and -0.27 mm. CONCLUSIONS. Regarding clinical application, both systems seem to be equally good and interchangeable in clinical practice in terms of ACD evaluation.

Revue / Journal Title

European Journal of Ophthalmology   ISSN 1120-6721 

Source / Source

2007, vol. 17, n^o3, pp. 327-331 [5 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Wichtig, Milano, ITALIE  (1991) (Revue)

Mots-clés d'auteur / Author Keywords

Anterior chamber IOLMaster ; Orbscan II ;

Localisation / Location

INIST-CNRS, Cote INIST : 22516, 35400014657721.0080