Publication: Análisis de la función visual y de las variaciones en los resultados tomográficos papilares tras el implante de lentes intraoculares trifocales
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2018-03-19
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Universidad Complutense de Madrid
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Abstract
Las lentes intraoculares multifocales constituyen en la actualidad uno de los puntos más importantes de la oftalmología y sobre el cual versan numerosas publicaciones. Se han desarrollado partiendo de parámetros ópticos que se han ido añadiendo a la estructura de las lentes intraoculares monofocales empleadas en la cirugía de la catarata. Más en concreto las lentes intraoculares trifocales comercializadas más recientemente se han diseñado para satisfacer completamente al paciente sometido a una cirugía de catarata y ser capaces de proporcionar muy buenos niveles de visión en distancias lejanas, cercanas e intermedias sin necesidad de corrección óptica posterior. Como todas las lentes intraoculares multifocales se les ha asociado a ellas una pérdida de la sensibilidad al contraste de los pacientes tras su implantación que podría hacer que los niveles de calidad visual posteriores a la cirugía no fueran tan satisfactorios como se espera. En el presente estudio realizaremos una valoración de la cantidad visual obtenida tras la implantación de dos tipos de lentes intraoculares trifocales evaluada a través de la agudeza visual a diferentes distancias y de las curvas de desenfoque y de la calidad visual medida en función de la sensibilidad al contraste. Las diferentes propiedades ópticas que portan estas lentes intraoculares podrían alterar los resultados obtenidos en las mediciones de la capa de fibras nerviosas peripapilar realizadas con tomografías de coherencia óptica por lo cual ampliaremos el estudio al realizar un análisis de las posibles variaciones producidas y compararlas con las producidas tras la implantación de una lente intraocular monofocal...
Multifocal intraocular lenses are currently one of the most important topics in ophthalmology and so there are many publications about them. They have been developed based on optical parameters that have been added to the monofocal intraocular lenses structure used in cataract surgery. Specifically, the most recent trifocal intraocular lenses commercialized have been designed to completely satisfy patients who undergo cataract surgery and to be able to provide very good quality vision levels at far, near and intermediate distance without a following optical correction needed. However, it has been associated to them, like to other multifocal intraocular lenses, a decrease in contrast sensitivity after being implanted, which could result in a non as satisfactory quality vision levels as expected after the surgery. At the present study we will evaluate the visual quantity outcome after the implantation of two types of trifocal intraocular lenses by assessing the visual acuity at different distances and the defocus curves, and the vision quality measured according to contrast sensitivity. The different optical characteristics of these lenses could modify the peripapillary nerve fiber layer measurements results obtained by the optical coherence tomography which is why we will complete the study with an analysis of the possible variations produced and a comparison of them with the ones produced after a monofocal intraocular lens implantation...
Multifocal intraocular lenses are currently one of the most important topics in ophthalmology and so there are many publications about them. They have been developed based on optical parameters that have been added to the monofocal intraocular lenses structure used in cataract surgery. Specifically, the most recent trifocal intraocular lenses commercialized have been designed to completely satisfy patients who undergo cataract surgery and to be able to provide very good quality vision levels at far, near and intermediate distance without a following optical correction needed. However, it has been associated to them, like to other multifocal intraocular lenses, a decrease in contrast sensitivity after being implanted, which could result in a non as satisfactory quality vision levels as expected after the surgery. At the present study we will evaluate the visual quantity outcome after the implantation of two types of trifocal intraocular lenses by assessing the visual acuity at different distances and the defocus curves, and the vision quality measured according to contrast sensitivity. The different optical characteristics of these lenses could modify the peripapillary nerve fiber layer measurements results obtained by the optical coherence tomography which is why we will complete the study with an analysis of the possible variations produced and a comparison of them with the ones produced after a monofocal intraocular lens implantation...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Medicina, Departamento de Oftalmología, leída el 01/03/2017