Validation of corneal topographic and aberrometric measurements obtained by color light-emitting diode reflection topography in healthy eyes
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http://hdl.handle.net/10045/98756
Títol: | Validation of corneal topographic and aberrometric measurements obtained by color light-emitting diode reflection topography in healthy eyes |
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Autors: | Piñero, David P. | Molina-Martín, Ainhoa | Camps, Vicente J. | Fez Saiz, Dolores de | Caballero, María T. |
Grups d'investigació o GITE: | Grupo de Óptica y Percepción Visual (GOPV) |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Paraules clau: | Corneal topography | Cassini | Pentacam | Anterior corneal curvature | Posterior corneal curvature | Aberrometry | Color light-emitting diode reflection topography |
Àrees de coneixement: | Óptica |
Data de publicació: | de novembre-2019 |
Editor: | Springer Berlin Heidelberg |
Citació bibliogràfica: | Graefe's Archive for Clinical and Experimental Ophthalmology. 2019, 257(11): 2437-2447. doi:10.1007/s00417-019-04453-5 |
Resum: | Purpose To evaluate the intrasession repeatability of anterior corneal topographic and aberrometric measurements provided by a color-LED topographer as well as their interchangeability with those provided by a Scheimpflug-based system in healthy eyes. Methods Thirty-five healthy eyes of 35 patients (age, 16–66 years) were enrolled. A complete eye examination was performed in all cases including a complete corneal analysis with the Scheimpflug-based system Pentacam (Oculus Optikgeräte) (one measurement) and the Cassini system (i-Optics) (three consecutive measurements). Intrasession repeatability of the Cassini measurements was assessed with the within-subject standard deviation (Sw) and the intraclass correlation coefficient (ICC). The Bland-Altman analysis was used to evaluate the agreement between both devices. Results Mean Sw for keratometric readings was 0.02 mm (ICC ≥ 0.992), ranging between 0.16 and 0.05 D (ICC 0.930–0.978) for anterior and total astigmatic measurements. Mean Sw for asphericity and corneal diameter were 0.06 (ICC 0.926) and 0.03 mm (IC 0.997), respectively. Aberrometric parameters showed ICCs ≥ 0.816, except for Z42 (ICC 0.741) and Z44 (ICC 0.544). When comparing devices, statistically significant differences were found for most of topographic and aberrometric data (p ≤ 0.044). Likewise, ranges of agreement between devices were clinically relevant (keratometry > 0.06 mm; total astigmatic components > 0.69 D; asphericity 0.35; second-, third-, and fourth-order Zernike terms, more than 0.20, 0.13, and 0.01 μm, respectively). Conclusions Consistent anterior corneal topographic, total corneal astigmatic, and aberrometric measurements are obtained with color-LED topography in healthy eyes, which are not interchangeable with those provided by the Scheimpflug-based topography. |
Patrocinadors: | The author David P Piñero has been supported by the Ministry of Economy, Industry and Competitiveness of Spain within the program Ramón y Cajal, RYC-2016-20471. |
URI: | http://hdl.handle.net/10045/98756 |
ISSN: | 0721-832X (Print) | 1435-702X (Online) |
DOI: | 10.1007/s00417-019-04453-5 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © Springer-Verlag GmbH Germany, part of Springer Nature 2019 |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1007/s00417-019-04453-5 |
Apareix a la col·lecció: | INV - GOPV - Artículos de Revistas |
Arxius per aquest ítem:
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2019_Pinero_etal_GraefesArchClinExpOphthalmol_final.pdf | Versión final (acceso restringido) | 476,93 kB | Adobe PDF | Obrir Sol·licitar una còpia |
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