Comparative Analysis of Two Clinical Diagnostic Methods of the Corneoscleral Geometry

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/118412
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Title: Comparative Analysis of Two Clinical Diagnostic Methods of the Corneoscleral Geometry
Authors: Bataille, Laurent | Molina-Martín, Ainhoa | Piñero, David P.
Research Group/s: Grupo de Óptica y Percepción Visual (GOPV)
Center, Department or Service: Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Keywords: Corneoscleral topography | Eye surface profiler | Profilometry | Scheimpflug imaging | Ocular sagittal height | Conjunctiva
Knowledge Area: Óptica
Issue Date: Oct-2021
Publisher: Wolters Kluwer
Citation: Eye & Contact Lens: Science & Clinical Practice: 2021, 47(10): 546-551. https://doi.org/10.1097/ICL.0000000000000785
Abstract: Purpose: To compare the sagittal height (SH) measurements and best fit sphere (BFS) scleral curvature obtained with two different diagnostic technologies. Methods: Prospective, nonrandomized, and comparative study analyzing 23 healthy eyes of 23 patients (age, 14–52 years) was conducted. A complete eye examination was performed including a corneoscleral topographic analysis with the Scheimpflug camera–based system Pentacam (Oculus GmbH, Wetzlar, Germany) and afterward with the Fourier domain profilometer Eye Surface Profiler (ESP) (Eaglet-Eye, Houten, the Netherlands). Differences between devices in temporal SH (TSH), nasal SH (NSH), and mean SH (MSH) measurements at 13- and 15-mm chord length and in scleral BFS were analyzed. Results: Statistically significant differences were found in TSH, NSH, and MSH obtained with Pentacam and ESP (P≤0.017), with a range of agreement from 0.21 to 1.28 mm, and a clear trend of the Pentacam system to provide higher SH measurements. Significant differences were found between Pentacam scleral BFS and ESP outer BFS (P<0.001) (range agreement, 3.57 mm). Significant correlations were found between spherical equivalent and differences between devices in 15-mm TSH (r=0.485; P=0.048), as well as between the difference between devices for some SH measurements and the magnitude of such SH values (r≥0.504; P≤0.014). Conclusion: Sagittal height and scleral BFS measurements obtained with the two devices are not interchangeable, with an increased difference in SH measures between devices in eyes with less myopic refractive error and increased SH values.
Sponsor: This article is funded by the Project UAIND18-06B of the University of Alicante within the program “Ayudas destinadas a la formación predoctoral en colaboración con empresas 2018” supported by the Vicerrectorado de Investigación y Transferencia de Conocimiento. The author D.P. Piñero has been also 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/10045/118412
ISSN: 1542-2321 (Print) | 1542-233X (Online)
DOI: 10.1097/ICL.0000000000000785
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2021 Contact Lens Association of Ophthalmologists
Peer Review: si
Publisher version: https://doi.org/10.1097/ICL.0000000000000785
Appears in Collections:INV - GOPV - Artículos de Revistas

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