Intrasession repeatability of refractive and ocular aberrometric measurements obtained using a multidiagnostic device in healthy eyes
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Title: | Intrasession repeatability of refractive and ocular aberrometric measurements obtained using a multidiagnostic device in healthy eyes |
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Authors: | Piñero, David P. | López Navarro, Alberto | Cabezos, Inmaculada | Fez Saiz, Dolores de | Caballero, María T. | Camps, Vicente J. |
Research Group/s: | Grupo de Óptica y Percepción Visual (GOPV) |
Center, Department or Service: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Keywords: | Ocular aberrations | Refraction | Scheimpflug imaging | VX120 system | Intrasession repeatability |
Knowledge Area: | Óptica |
Issue Date: | 4-May-2017 |
Publisher: | Dove Press |
Citation: | Clinical Optometry. 2017, 9: 91-96. doi:10.2147/OPTO.S132572 |
Abstract: | Purpose: To evaluate the intrasession repeatability of refractive and ocular aberrometric measurements obtained using a new multidiagnostic device in healthy eyes. Patients and methods: A total of 107 eyes of 107 patients, age ranging from 23 to 65 years, were enrolled in this study. A complete eye examination was performed in all eyes, including an ocular examination using the VX120 system. Three consecutive measurements were obtained using this device to assess the intrasession repeatability of different refractive and ocular aberrometric parameters. The within-subject standard deviation (Sw), intrasubject precision (1.96×Sw), and intraclass correlation coefficient (ICC) were calculated. Results: Sw and intrasubject precision for refractive data were below 0.12 and 0.20 D, respectively, in all cases. The ICC ranged from 0.947 for the J45 power vector component to 0.997 for the sphere. Concerning aberrometric measurements Sw and intrasubject precision values were below 0.05 µm and 0.10 µm, respectively. Likewise, the ICC ranged from 0.805 for the quadrafoil root mean square to 0.954 for the primary spherical aberration. Poor correlations were found between most of the refractive parameters and their Sw (–0.033≤r≤0.053, p≥0.064). Moderate and significant positive correlations were found between the magnitude of the aberrometric parameters evaluated and their Sw (r≥0.446, p<0.001). Conclusion: The new multidiagnostic device evaluated is able to provide consistent measurements of refraction and ocular aberrations in healthy eyes. Future studies should confirm if this consistency is also observed in highly aberrated eyes. |
URI: | http://hdl.handle.net/10045/65695 |
ISSN: | 1179-2752 |
DOI: | 10.2147/OPTO.S132572 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2017 Piñero et al. This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php). |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.2147/OPTO.S132572 |
Appears in Collections: | INV - GOPV - Artículos de Revistas |
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2017_Pinero_etal_Clinical-Optometry.pdf | 157,19 kB | Adobe PDF | Open Preview | |
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