Related Experiment Video
Updated: Jul 15, 2026
05:14
Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
Published on: September 16, 2025
Agreement Between Pentacam AXL and IOLMaster 700 Axial Length Measurements in a Routine Cataract Population.
Deniz Kilic1, Mustafa Aksoy1, Erkan Unsal1
1İzmir Dunyagoz Hospital, Department of Ophthalmology, İzmir, Turkey.
Photodiagnosis and Photodynamic Therapy
|July 13, 2026
Summary
The Pentacam AXL and IOLMaster 700 show excellent agreement for axial length measurements in cataract patients. This confirms the Pentacam AXL
Area of Science:
- Ophthalmology
- Biomedical Optics
- Medical Device Technology
Background:
- Accurate axial length (AL) measurement is crucial for intraocular lens (IOL) power calculation in cataract surgery.
- Comparing different biometry devices is essential to ensure reliable preoperative data.
- Understanding potential influences on measurement variability is key for surgical planning.
Purpose of the Study:
- To evaluate the agreement between axial length (AL) measurements from Pentacam AXL and IOLMaster 700.
- To assess if endothelial cell count or optical quality parameters affect inter-device AL differences.
Main Methods:
- Retrospective observational study of 65 eyes from 65 patients undergoing cataract surgery.
- Simultaneous AL measurements using Pentacam AXL and IOLMaster 700.
- Statistical analysis included Pearson correlation, ICC, and Bland-Altman analysis.
Main Results:
- Very strong correlation (ICC = 0.998, r = 0.998) between Pentacam AXL and IOLMaster 700 AL measurements.
- Mean difference in AL (ΔAL) was minimal (0.019 ± 0.054 mm) with narrow limits of agreement.
- No significant association found between ΔAL and endothelial or optical quality parameters.
Conclusions:
- Pentacam AXL and IOLMaster 700 exhibit excellent agreement for AL measurements in routine cataract surgery.
- Pentacam AXL is clinically reliable for preoperative biometry in cataract surgery planning.
