{"id":89235,"date":"2001-09-03T00:00:00","date_gmt":"2001-09-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/modelo-experimental-de-opacidad-corneal-o-haze-tras-queratectoma%c2%ada-fotorrefractiva-metodo-objetivo-de-medida-y-valoracion-de-farmacos-modulares\/"},"modified":"2001-09-03T00:00:00","modified_gmt":"2001-09-03T00:00:00","slug":"modelo-experimental-de-opacidad-corneal-o-haze-tras-queratectoma%c2%ada-fotorrefractiva-metodo-objetivo-de-medida-y-valoracion-de-farmacos-modulares","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/modelo-experimental-de-opacidad-corneal-o-haze-tras-queratectoma%c2%ada-fotorrefractiva-metodo-objetivo-de-medida-y-valoracion-de-farmacos-modulares\/","title":{"rendered":"Modelo experimental de opacidad corneal o haze tras queratectom\u00edafotorrefractiva. m\u00e9todo objetivo de medida y valoraci\u00f3n de f\u00e1rmacos modulares"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Ya\u00f1ez Alvarez Bety Patricia <\/strong><\/h2>\n<p>Introduccion  la cirug\u00eda refractiv representa una alternativa para la correcci\u00f3n de las ametrop\u00edas en aquellas personas sanas que desean mejorar su calidad de vida sintnener que depende de gafas y lentes de contacto. Las ventajas del l\u00e1ser exc\u00edmer aplicadas a la oftamolog\u00eda marcaron toda una revoluci\u00f3n en el tratamiento de las ametrop\u00edas. Existen dos t\u00e9cnicas de l\u00e1ser exc\u00edmer vigentes, la queratectom\u00eda fotorrefractiva (prk) que consiste en la fotoablaci\u00f3n del estroma anterior para cambiar el poder refractivo del ojo y la queratomileusis in situ asistida con l\u00e1ser exc\u00edmer (lasik). Si bien se ha llegado ha obtener buenos resultados con la prk la calidad de visi\u00f3n de los pacientes puede verse afectada por la aparici\u00f3n de dos complicaciones importantes, la regresi\u00f3n la p\u00e9rdida de transparencia de la c\u00f3rnea o haze. Esta opacidad que es frecuente de observar en el postoperatorio de una prk y sobre la que desconocemos mucho de su fisiopatolog\u00eda, se valora solo de manera subjetiva y el tratamiento que se utiliza actualmente es emp\u00edrico porque los resultados obtenidos est\u00e1n basados en un modelo animal inadecuado.  en este trabajo nos planteamos desarrollar un modelo de opacidad corneal en la gallina que semeje lo que se produce en el humano, un modelo objetivo de medida reproducible y fiable y valorar la modulaci\u00f3n\u00c2\u00bfpor f\u00e1rmacos de esta opacidad en el modelo desarrollado.  material y m\u00e9todos  trabajamos con 60 gallinas a las que realizamos una prk de -9,00d y 5mm zona \u00f3ptica. Los animales fueron divididos en 8 grupos experimentales: 1(no  manipulados); 2 (c\u00f3rneas prk+pbs); 3 (corticoide); 5 (quitosano); 7 (a. Hialur\u00f3nico) y 4-6-8 (pbs). Se utiliz\u00f3 el m\u00e9todo subjetivo de medida y como m\u00e9todo objetivo, la medida de la transmitancia y dispersi\u00f3n hacia delante de una luz l\u00e1ser hene. El estudio de anatom\u00eda patol\u00f3gica fue de microscop\u00eda \u00f3ptica y microscop\u00eda electr\u00f3nica de transmisi\u00f3n y los controles se hicie<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Modelo experimental de opacidad corneal o haze tras queratectom\u00edafotorrefractiva. m\u00e9todo objetivo de medida y valoraci\u00f3n de f\u00e1rmacos modulares<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Modelo experimental de opacidad corneal o haze tras queratectom\u00edafotorrefractiva. m\u00e9todo objetivo de medida y valoraci\u00f3n de f\u00e1rmacos modulares <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Ya\u00f1ez Alvarez Bety Patricia <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Valladolid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/03\/2001<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jes\u00fas Merayo Lloves<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 Carlos Pastor jimeno <\/li>\n<li>Juan Cuevas \u00e1lvarez (vocal)<\/li>\n<li>Rafael Navarro belsue (vocal)<\/li>\n<li>antonia Saornil alvarez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ya\u00f1ez Alvarez Bety Patricia Introduccion la cirug\u00eda refractiv representa una alternativa para la correcci\u00f3n de las ametrop\u00edas [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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