Repeatability and Reproducibility of a New Partial Coherence Interferometer; AL-Scan Optic Biometer

Tetikoğlu, Mehmet; Sağdık, Hacı Murat; Aktaş, Serdar; Özçura, Fatih

doi:10.5455/medscience.2015.04.8372

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…Currently, the widely used AL measuring instruments are divided into PCI (partial coherence interferometry) and OLCR (optical low coherence reflectometry) techniques according to the difference of light source and interference light path. Among them, IOL master [20] (ZEISS, Germany) and AL-Scan [21] (Nidek, Japan) are based on the PCI principle. Of the instruments based on OLCR principle, there are Lenstar LS900 [22] (Haag-Streit, Switzerland) and SW-9000 [23] (Suoer, China).…”

Section: Introductionmentioning

confidence: 99%

The measurement of ocular axial length in normal human eyes based on an improved Twyman‐Green interferometer

Wang

Huangfu

Zhou

et al. 2021

Journal of Biophotonics

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In order to meet the demands of myopia prevention, as well as the increasing needs of measurement for refractive and cataract operations in China, a new axial length (AL) measurement system combining an improved Twyman-Green interferometer with digital signal processing has been established. The ALs of 33 eyes of different optical refractive subjects (À8.50~0.50 D) were measured with the New AL and intraocular lens (IOL) master. The repeatability of measurements with the New AL was assessed using coefficient of variation (CoV) and intra-group correlation coefficient (ICC). Comparison, correlation, linear regression and agreement of AL between devices were analyzed. There was good repeatability (CoV = 0.0617%, ICC = 0.9999) with the New AL and great agreement has been obtained with both devices. These show that the New AL is capable of providing precise AL values over the normal AL range compared to the IOL master, and indicate that the New AL developed can be used for routine clinical AL measurements.

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Section: Introductionmentioning

confidence: 99%

The measurement of ocular axial length in normal human eyes based on an improved Twyman‐Green interferometer

Wang

Huangfu

Zhou

et al. 2021

Journal of Biophotonics

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Precision and agreement of axial length in paediatric population measured with MYAH and AL-Scan biometers

Aldaba,

Ochando,

Vila-Vidal

et al. 2023

Clinical and Experimental Optometry

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Repeatability and Reproducibility of a New Partial Coherence Interferometer; AL-Scan Optic Biometer

Abstract: The purpose of this study was to evaluate the intra-observer repeatability and inter-observer reproducibility of the ocular parameter measurements in cataract eyes using the new partial coherence interferometer, AL-Scan. Eighty-six

Cited by 2 publications

References 21 publications

The measurement of ocular axial length in normal human eyes based on an improved Twyman‐Green interferometer

The measurement of ocular axial length in normal human eyes based on an improved Twyman‐Green interferometer

Precision and agreement of axial length in paediatric population measured with MYAH and AL-Scan biometers

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