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Updated: Jun 12, 2026
Doppler Optical Coherence Tomography of Retinal Circulation
Published on: September 18, 2012
Agreement between the Swept-Source Optical Coherence Tomography and the Image-Guided System for Biometry Assessment
Edel Moreno-Páramo1, Santiago García-Arroyo1, Grecia Y Ortiz-Ramirez1
1Anterior Segment Surgery Department, Asociación Para Evitar La Ceguera México I.A.P, Mexico City, Mexico.
Purpose:
To assess the agreement on biometric data obtained using the Verion image-guided surgery system and the swept-source-OCT biometer IOL Master 700.
Materials And Methods:
All patients underwent biometry using the SS-OCT and the Image-Guide System. The comparison between instruments was assessed using the Intraclass correlation coefficient (ICC). Level of Agreement (LoA) employing the Bland-Altman analysis.
Results:
The image-based system produced significantly higher keratometry values, evidencing a low LoA between the SS-OCT and the image-based system, ranging from -1.30 D to 0.65 D (1.95 D), -1.04 D to 0.72 D (1.76 D), and -1.31 D to 0.65 D (1.96 D), respectively. The LoA for the Cylinder ranged from -0.46 D to 0.74 D (1.2 D) and from 0.82 to 0.94 mm for WTW.
Conclusions:
In our study, the SS-OCT biometer and the Image-based System evidenced statistically significant differences in measuring the main biometric parameters except for the WTW.
