2026-04-22T22:13:12Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/64722025-02-19T08:12:16Zcom_10324_1133com_10324_931com_10324_894col_10324_1209

Martínez García, María del Carmen Mar Sardaña, Santiago Blanco Mezquita, José Tomás Torres, R.M. Merayo Lloves, Jesús Cirugía refractiva Cornea - Enfermedades Producción Científica The aim of this work is to provide experimental data for corneal transparency and scattering to help create a more complete model of corneal transparency. The scattered light in 96 healing hen corneas was measured for three wavelengths by a scatterometer constructed in the Optics Laboratory (The University of Valladolid, Spain). With the help of mirrors and beamsplitters, the light from the three lasers is directed toward the cell containing the sample to be measured. The measured scattered light varies between six orders of magnitude. Corneal transmissivity, mean cosine of a scattering angle, and angular distribution of scattered light were all computed. The total transmitted light remained practically constant over a wide range of light values transmitted in a forward direction (direct transmissivity). The value of the mean cosine of the scattering direction is very close to the unit (g40:98), even in corneas with high opacities. The behavior of g indicates that even damaged corneas evidence extremely small scattering, compared to other biological tissues. The transmission reduction of each cornea is related to an increase in scattered light. In all cases, scattered light is concentrated at very small angles. This behavior is acceptable in corneas that are healthy or which evidence small lesions, but remains in corneas that are severely injured. 2014-10-08 2014-10-08 2009 info:eu-repo/semantics/article Journal of Modern Optics, May 2009, vol. 56, n.8. p.1014-1021 0950-0340 http://uvadoc.uva.es/handle/10324/6472 10.1080/09500340902871389 1014 8 1021 Journal of Modern Optics 56 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Attribution-NonCommercial-NoDerivatives 4.0 International Taylor & Francis