Korean J Ophthalmol.  2008 Dec;22(4):242-245. 10.3341/kjo.2008.22.4.242.

Anterior Chamber Measurements by Pentacam and AS-OCT in Eyes With Normal Open Angles

• Yi JH
• Lee H
• Hong S
• Seong GJ
• Kang SY
• Ma KT
• Kim CY

• KMID: 1084211
• DOI: http://doi.org/10.3341/kjo.2008.22.4.242

Abstract

PURPOSE: To assess the reproducibility and agreement of anterior chamber measurements between the Pentacam (PTC) and the Anterior segment optical coherence tomography (AOCT) in normal healthy eyes with open angle. METHODS: Prospective cross-sectional comparative case series. A total of 162 eyes of 81 healthy volunteers with normal open angle were included in this study. Anterior chamber angle (ACA) and anterior chamber depth (ACD) were measured with PTC and AOCT. Intra-observer variability and inter-methods agreement of both instruments for ACA and ACD were evaluated. RESULTS: Values of temporal and nasal ACA measured by two instruments were similar, and the results of ACD were also not significantly different between modalities (p>0.01). ACA and ACD measurements by PTC and AOCT showed good intra-observer and inter-method agreements (all >0.9). CONCLUSIONS: PTC and AOCT are presumed to be very useful for the anterior chamber angle examination. They may provide good images and quantitative data about the angle structures including ACA and ACD.

Keyword

Anterior chamber angle; Anterior chamber depth; Anterior segment optical coherence tomogaphy; Pentacam

MeSH Terms

Adolescent
Adult
Anterior Chamber/*anatomy & histology
Anterior Eye Segment
Cross-Sectional Studies
*Diagnostic Techniques, Ophthalmological
Female
Humans
Male
Observer Variation
Photography/*methods
Prospective Studies
Reproducibility of Results
Tomography, Optical Coherence/*methods
Trabecular Meshwork/anatomy & histology
Young Adult

Figure

• 

  Fig. 1 Bland-Altman analysis for the intrer-methods agreement for Pentacam (PTC) and Anterior segment optical coherence tomography (AOCT). (a) Anterior chamber angle; (b) Anterior chamber depth.

• 

  Fig. 2 Linear regression analysis between anterior chamber angle and anterior chamber depth for the Pentacam (PTC) (a) and the Anterior segment optical coherence tomography (AOCT) (b).

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