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Precision of a new ocular biometer in children and comparison with IOLMaster
To assess the repeatability and reproducibility of AL-Scan in agreement with those by the IOLMaster in healthy children, two skilled operators measured ocular parameters in 58 children. The parameters included keratometry (K) values, anterior chamber depth (ACD), axial length (AL), central corneal t...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5778016/ https://www.ncbi.nlm.nih.gov/pubmed/29358637 http://dx.doi.org/10.1038/s41598-018-19605-6 |
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author | Yu, Xinxin Chen, Hao Savini, Giacomo Zheng, Qianqian Song, Benhao Tu, Ruixue Huang, Jinhai Wang, Qinmei |
author_facet | Yu, Xinxin Chen, Hao Savini, Giacomo Zheng, Qianqian Song, Benhao Tu, Ruixue Huang, Jinhai Wang, Qinmei |
author_sort | Yu, Xinxin |
collection | PubMed |
description | To assess the repeatability and reproducibility of AL-Scan in agreement with those by the IOLMaster in healthy children, two skilled operators measured ocular parameters in 58 children. The parameters included keratometry (K) values, anterior chamber depth (ACD), axial length (AL), central corneal thickness (CCT), pupil diameter (PD), and corneal diameter (CD). The cohort comprised of 32 boys and 26 girls. The AL-Scan measurements showed high repeatability, as the test-retest repeatability (TRT) values of AL, CCT, ACD, Kf, Ks, Km, CD, and PD were 0.09 mm, 5.1 μm, 0.04 mm, 0.28 D, 0.24 D, 0.21 D, 0.39 mm, and 0.22 mm, respectively. The within-subject coefficient of variation (CoV) was low (<0.35%) and the intraclass correlation coefficients (ICC) of all parameters were >0.85. The interobserver reproducibility was excellent with low values of TRT and ICC > 0.95. The CoV of AL, CCT, ACD, and K was <0.22%. The 95% limits of agreement between the AL-Scan and the IOLMaster were narrow for all parameters except for CD. The repeatability and reproducibility of the new biometer, Al-Scan, was excellent for all parameters and can be routinely used in children to measure the biometric values. |
format | Online Article Text |
id | pubmed-5778016 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-57780162018-01-31 Precision of a new ocular biometer in children and comparison with IOLMaster Yu, Xinxin Chen, Hao Savini, Giacomo Zheng, Qianqian Song, Benhao Tu, Ruixue Huang, Jinhai Wang, Qinmei Sci Rep Article To assess the repeatability and reproducibility of AL-Scan in agreement with those by the IOLMaster in healthy children, two skilled operators measured ocular parameters in 58 children. The parameters included keratometry (K) values, anterior chamber depth (ACD), axial length (AL), central corneal thickness (CCT), pupil diameter (PD), and corneal diameter (CD). The cohort comprised of 32 boys and 26 girls. The AL-Scan measurements showed high repeatability, as the test-retest repeatability (TRT) values of AL, CCT, ACD, Kf, Ks, Km, CD, and PD were 0.09 mm, 5.1 μm, 0.04 mm, 0.28 D, 0.24 D, 0.21 D, 0.39 mm, and 0.22 mm, respectively. The within-subject coefficient of variation (CoV) was low (<0.35%) and the intraclass correlation coefficients (ICC) of all parameters were >0.85. The interobserver reproducibility was excellent with low values of TRT and ICC > 0.95. The CoV of AL, CCT, ACD, and K was <0.22%. The 95% limits of agreement between the AL-Scan and the IOLMaster were narrow for all parameters except for CD. The repeatability and reproducibility of the new biometer, Al-Scan, was excellent for all parameters and can be routinely used in children to measure the biometric values. Nature Publishing Group UK 2018-01-22 /pmc/articles/PMC5778016/ /pubmed/29358637 http://dx.doi.org/10.1038/s41598-018-19605-6 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Yu, Xinxin Chen, Hao Savini, Giacomo Zheng, Qianqian Song, Benhao Tu, Ruixue Huang, Jinhai Wang, Qinmei Precision of a new ocular biometer in children and comparison with IOLMaster |
title | Precision of a new ocular biometer in children and comparison with IOLMaster |
title_full | Precision of a new ocular biometer in children and comparison with IOLMaster |
title_fullStr | Precision of a new ocular biometer in children and comparison with IOLMaster |
title_full_unstemmed | Precision of a new ocular biometer in children and comparison with IOLMaster |
title_short | Precision of a new ocular biometer in children and comparison with IOLMaster |
title_sort | precision of a new ocular biometer in children and comparison with iolmaster |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5778016/ https://www.ncbi.nlm.nih.gov/pubmed/29358637 http://dx.doi.org/10.1038/s41598-018-19605-6 |
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