Cambios en la superficie corneal y calidad óptica en pacientes con queratocono pre y post implantación de anillos intraestromales
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2022
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20/04/2022
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Universidad Complutense de Madrid
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Abstract
El queratocono es un desorden, generalmente bilateral y asimétrico que cursa con un adelgazamiento progresivo del espesor del estroma central y/o paracentral corneal y una modificación de la curvatura que produce en mayor o menor medida un astigmatismo irregular, un incremento de las aberraciones de alto orden (HOA) y una protrusión corneal o ectasia que provoca una disminución de calidad visual. La adaptación de lentes de contacto rígidas (LCRPG) es habitualmente el primer tratamiento para recuperar la función visual y el cross-linking (CXL) es el tratamiento aplicado principalmente para estabilizar la córnea y frenar el progreso del queratocono, procurando el fortalecimiento del estroma corneal. La queratoplastia o trasplante total o parcial del centro corneal está indicada cuando la córnea muestra un alto grado de deterioro y perdida de transparencia. Se maneja de cualquier modo como una solución con menos garantías de éxito, ya que la irregularidad superficial corneal resultante aporta mala calidad visual en la mayoría de los casos...
Keratoconus is a disorder, usually bilateral and asymmetrical, that occurs with a progressive thinning of the thickness of the central and/or paracentral corneal stroma and a modification of the curvature that produces, to a greater or lesser extent, an irregular astigmatism, an increase in high-order aberrations (HOA), and corneal protrusion or ectasia that causes a decrease in visual quality. The adaptation of rigid contact lenses (CL RGP) is usually the first treatment for recovering visual function, and Cross-linking (CXL) is the treatment applied mainly to stabilize the cornea and to slow keratoconus’ progress, managing to strengthen the corneal stroma. Keratoplasty or total or partial transplantation of the corneal centre is indicated when the cornea presents a high degree of deterioration and loss of transparency. In any case, it is handled as a solution with few guarantees of success, since the resulting superficial corneal irregularity provides poor visual quality in most cases...
Keratoconus is a disorder, usually bilateral and asymmetrical, that occurs with a progressive thinning of the thickness of the central and/or paracentral corneal stroma and a modification of the curvature that produces, to a greater or lesser extent, an irregular astigmatism, an increase in high-order aberrations (HOA), and corneal protrusion or ectasia that causes a decrease in visual quality. The adaptation of rigid contact lenses (CL RGP) is usually the first treatment for recovering visual function, and Cross-linking (CXL) is the treatment applied mainly to stabilize the cornea and to slow keratoconus’ progress, managing to strengthen the corneal stroma. Keratoplasty or total or partial transplantation of the corneal centre is indicated when the cornea presents a high degree of deterioration and loss of transparency. In any case, it is handled as a solution with few guarantees of success, since the resulting superficial corneal irregularity provides poor visual quality in most cases...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Óptica y Optometría, Departamento de Optometría y Visión, leída el 20-04-2022