Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10637/13599
Título : Spectral transmission of the human corneal layers
Autor : Peris Martínez, Cristina.
García Domene, Mari Carmen.
Penadés Fons, Mariola.
Luque Cobija, María Josefa.
Fernández López, Ester.
Artigas Verde, José María.
Materias: Luz - Absorción.Radiación ultravioleta.Ultraviolet radiation.Absorption spectra.Light absorption.Espectros de absorción.Córnea.Cornea.
Fecha de publicación : 29-sep-2021
Editorial : MDPI
Citación : Peris-Martínez, C., García-Domene, M. C., Penadés, M., Luque, M. J., Fernández-López, E. & Artigas, J. M. (2021). Spectral transmission of the human corneal layers. Journal of Clinical Medicine, vol. 10, i. 19 (29 sep.), art. 4490. DOI: https://doi.org/10.3390/jcm10194490
Resumen : We have assessed the spectral transmittance of the different layers of the human cornea in the ultraviolet (UV), visible, and near-infrared (IR) spectral ranges. Seventy-four corneal sample donors were included in the study. Firstly, the corneal transmittance was measured using a spectrophotometer. Then, all samples were fixed for histopathological analysis, which allowed us to measure the thickness of each corneal layer. Finally, the absorption coefficients of the corneal layers were computed by a linear model reproducing total transmittance. The results show that corneal transmission was almost in unity at the visible and IR ranges but not at the UV range, in which the layer with higher transmission is Descemet’s membrane, whereas the stroma showed the lowest transmittance. Regarding the absorption coefficient, the most absorptive tissue was Bowman’s layer, followed by the endothelium. Variations on transmittance due to changes in the stroma, Bowman’s layer, or Descemet layer were simulated, and important transmission increases were found due to stroma and Bowman changes. To conclude, we have developed a method to measure the transmittance and thickness for each corneal layer. All corneal layers absorb UV light to a greater or lesser extent. The absorption coefficient is higher for Bowman’s layer, while the stroma is the layer with the lowest transmittance due to its thickness. Variations in stroma thickness or changes in the corneal tissue of Bowman’s layer or the endothelium layer due to some pathologies or surgeries could affect, to a greater or lesser degree, the total transmission of the cornea. Thus, obtaining accurate absorption coefficients for different layers would help us to predict and compensate these changes.
Descripción : Este artículo se encuentra disponible en la siguiente URL: https://www.mdpi.com/2077-0383/10/19/4490
Este artículo de investigación pertenece a la sección "Ophthalmology".
Idioma: en
es
URI : http://hdl.handle.net/10637/13599
Derechos: http://creativecommons.org/licenses/by/4.0/deed.es
ISSN : 2077-0383 (Electrónico)
Aparece en las colecciones: Dpto. Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Spectral_Peris_JOCM_2021.pdf15,14 MBAdobe PDFVisualizar/Abrir



Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.