Assessment of Pattern and Shape Symmetry of Bilateral Normal Corneas by Scheimpflug Technology
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Título: | Assessment of Pattern and Shape Symmetry of Bilateral Normal Corneas by Scheimpflug Technology |
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Autor/es: | Cavas Martínez, Francisco | Piñero, David P. | Fernández-Pacheco, Daniel G. | Mira, Jorge | Cañavate, Francisco J.F. | Alió, Jorge L. |
Grupo/s de investigación o GITE: | Grupo de Óptica y Percepción Visual (GOPV) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Healthy cornea | Interocular difference | Nasal-temporal asymmetry | Geometric morphometry | Corneal tomography |
Área/s de conocimiento: | Óptica |
Fecha de publicación: | 1-oct-2018 |
Editor: | MDPI |
Cita bibliográfica: | Cavas-Martínez F, Piñero DP, Fernández-Pacheco DG, Mira J, Cañavate FJF, Alió JL. Assessment of Pattern and Shape Symmetry of Bilateral Normal Corneas by Scheimpflug Technology. Symmetry. 2018; 10(10):453. doi:10.3390/sym10100453 |
Resumen: | Purpose: The aim of this study was to assess bilateral symmetry in normal fellow eyes by using optical and geometric morphometric parameters. Methods: All participants underwent complete biocular examinations. Scheimpflug tomography data from 66 eyes of 33 patients were registered. The interocular symmetry was based on five patterns: morphogeometric symmetry, axial symmetry at the corneal vertex, angular-spatial symmetry, direct symmetry (equal octants), and enantiomorphism (mirror octants). Results: No statistically significant differences were found between right and left eyes in corneal morphogeometric (p ≥ 0.488) and aberrometric parameters (p ≥ 0.102). Likewise, no statistically significant differences were found in any of the axial symmetry parameters analyzed (p ≥ 0.229), except in the surface rotation angle beta (p = 0.102) and translation coordinates X0 and Y0 (p < 0.001) for the anterior corneal surface, and the rotation angle gamma (p < 0.001) for the posterior surface. Similarly, no statistically significant differences were identified for direct symmetry (p ≥ 0.20) and enantiomorphism (p ≥ 0.75), except for some elevation data in the posterior surface (p < 0.01). Conclusions: The level of symmetry of both corneas of a healthy individual is high, with only some level of disparity between fellow corneas in rotation and translation references. Abnormalities in this pattern of interocular asymmetry may be useful as a diagnostic tool. |
Patrocinador/es: | This publication has been carried out in the framework of the Thematic Network for Co-Operative Research in Health (RETICS), reference number RD16/0008/0012, financed by the Carlos III Health Institute–General Subdirection of Networks and Cooperative Investigation Centers (R&D&I National Plan 2013–2016) and the European Regional Development Fund (FEDER). 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/10045/81113 |
ISSN: | 2073-8994 |
DOI: | 10.3390/sym10100453 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/sym10100453 |
Aparece en las colecciones: | INV - GOPV - Artículos de Revistas |
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