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An Evaluation of the IOLMaster 700
Mark A Bullimore1, Stephen Slade, Paul Yoo
1Southern California College of Optometry (M.A.B.), Marshall B. Ketchum University, Fullerton, CA; College of Optometry (M.A.B.), The University of Houston, Houston, TX; Slade and Baker Vision Center (S.S.), Houston, TX; and Carl Zeiss Meditec (P.Y., T.O.), Dublin, CA.
Eye & Contact Lens
|October 17, 2018
Summary
The Carl Zeiss Meditec IOLMaster 700 shows excellent precision and agreement with other devices for ocular measurements. This swept-source optical coherence tomography device is reliable for clinical use in ophthalmology.
Area of Science:
- Ophthalmology
- Medical device technology
- Optical coherence tomography
Background:
- Accurate biometry is crucial for intraocular lens calculations.
- Previous biometry devices have varying degrees of precision and agreement.
- Swept-source optical coherence tomography (SS-OCT) offers potential advancements in ocular measurement.
Purpose of the Study:
- To assess the repeatability and reproducibility of the Carl Zeiss Meditec IOLMaster 700.
- To evaluate the agreement of the IOLMaster 700 with the IOLMaster 500 and Lenstar LS 900.
- To determine the clinical utility of the IOLMaster 700 in a clinical setting.
Main Methods:
- Measurements were performed on 100 subjects (51 cataract, 49 clear lens) using the IOLMaster 700, IOLMaster 500, and Lenstar LS 900.
- Three operators conducted measurements on three different IOLMaster 700 units to assess reproducibility.
- Analysis of variance and 95% limits of agreement were used to evaluate precision and agreement.
Main Results:
- The IOLMaster 700 demonstrated high repeatability and reproducibility for axial length, corneal power, anterior chamber depth, and lens thickness.
- Agreement between the IOLMaster 700 and IOLMaster 500 showed 95% limits of agreement within clinically acceptable ranges for key parameters.
- Comparisons with the Lenstar LS 900 also indicated good agreement for corneal and lens thickness.
Conclusions:
- The IOLMaster 700 exhibits superior or equivalent precision compared to existing devices.
- There is good agreement between the IOLMaster 700 and comparator instruments, such as the IOLMaster 500 and Lenstar LS 900.
- The observed differences are not clinically significant, supporting the IOLMaster 700's reliability for ophthalmic measurements.
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