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Comparison of the Ocular Ultrasonic and Optical Biometry Devices in the Different Quality Measurements Publisher Pubmed



Khorraminejad M1, 2 ; Khodair AM1 ; Khodaparast M2 ; Babapour Mofrad F3 ; Dehghanian Nasrabadi F4
Authors
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Authors Affiliations
  1. 1. Optometry Department, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
  4. 4. Optometry Department, School of Rehabilitation, Iran University of Medical Sciences, Tehran, Iran

Source: Journal of Optometry Published:2023


Abstract

Purpose: To compare the reliability and agreement of axial length (AL), anterior chamber depth (ACD), and lens thickness (LT) measurements obtained with optical biometry based on swept-source optical coherence tomography (IOLMaster 700; Carl Zeiss, Germany) and an ultrasound biometry device (Nidek; US-4000 Echoscan, Japan) in different qualities of AL measurement. Methods: A total of 239 consecutive eyes of 239 cataract surgery candidates with a mean age of 56 ± 14 years were included. The quality measurements were grouped according to the quartiles of SD of the measured AL by IOLMaster 700. The first and fourth quartile's SD are defined as high and low-quality measurement, respectively, and the second and third quartiles’ SD is defined as moderate-quality. Results: The reliability of AL and ACD between the two devices in all patients and in different quality measurement groups was excellent with highly statistically significant (AL: all ICC=0.999 and P<0.001, ACD: all ICC>0.920 and P<0.001). AL and ACD in all quality measurements showed a very strong correlation between devices with highly statistically significant. However, there was poor (ICC=0.305), moderate (ICC=0.742), and good (ICC=0.843) reliability in measuring LT in low-, moderate-, and high-quality measurements, respectively. LT showed a very strong correlation (r = 0.854) with highly statistically significant (P<0.001) between devices only in patients with high-quality measurements. Conclusions: AL and ACD of the IOLMaster700 had outstanding agreements with the US-4000 ultrasound in different quality measurements of AL and can be used interchangeably. But LT should be used interchangeably cautiously only in the high-quality measurements group. © 2023 Spanish General Council of Optometry
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