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Influencia de los movimientos oculares en la biomecánica de la cabeza del nervio óptico

dc.rights.licenseAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.contributor.advisorCortés Rodríguez, Carlos Julio
dc.contributor.advisorRodríguez Montaño, Óscar Libardo
dc.contributor.authorAlarcón Castiblanco, Juan David
dc.date.accessioned2023-01-17T19:41:24Z
dc.date.available2023-01-17T19:41:24Z
dc.date.issued2022-12-12
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/82989
dc.descriptionilustraciones, gráficas, tablas
dc.description.abstractEl ojo, como órgano de la visión, tiene en su interior tejidos nerviosos muy frágiles que, al ser dañados, pueden derivar en trastornos graves en la visión. Dada la imposibilidad de realizar ensayos invasivos sobre estos tejidos, se ha acudido en los últimos años a la modelación en computador y la simulación usando métodos numéricos. Distintos autores han estudiado la influencia de una elevada presión intraocular como principal determinador mecánico que podría dañar estos tejidos. Sin embargo, existen otros factores que podrían afectar estos tejidos, como los movimientos oculares, en los que se profundiza en este trabajo. Se compara la influencia que tienen estos movimientos con respecto a la que ejerce la presión intraocular (PIO), usando un modelo tridimensional ajustado a la anatomía, y los elementos finitos. Se obtuvo como resultado que, en el movimiento de abducción para el tejido nervioso prelaminar y la retina peripapilar, el valor de la deformación principal máxima y mínima se duplica, si se compara con los valores normales (PIO 15 mmHg). Asimismo, para el tejido nervioso preliminar el valor de esfuerzo y deformación tangencial en el plano del movimiento es noventa veces mayor con respecto al estado normal, y en la lámina cribosa este valor es 18 veces mayor. (Texto tomado de la fuente).
dc.description.abstractThe eye, as the vision organ, contains fragile nervous tissues, and if they get injured, it could generate serious troubles in the vision. Considering the impossibility to carry on test on these tissues, the modelling and studies on computer using numercial methods have emerged in the last years as an alternative. In this work we explore the influence of the eye movements on the optic nerve head biomechanics. We compare the impact these movements of the eye have regarding the one that have the intraocular pression (IOP), using an anatomical-fitting tridimensional model of the eye and a finite element software. We get that the maximum and minimum principal deformation increase two times when we have an 12° abduction movement, compared with the normal state (IOP 15 mmHg) in the prelaminar neural tissue and the peripapillary retina; and we have ninety times the value of shear stress and strain on the movement plane, making the same comparission, regarding the prelaminar neural tissue; and in the lamina cribosa this value is eighteen times greater.
dc.format.extent57 páginas, vi
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUniversidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc610 - Medicina y salud::612 - Fisiología humana
dc.subject.ddc620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería
dc.titleInfluencia de los movimientos oculares en la biomecánica de la cabeza del nervio óptico
dc.typeTrabajo de grado - Maestría
dc.type.driverinfo:eu-repo/semantics/masterThesis
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.publisher.programBogotá - Ingeniería - Maestría en Ingeniería - Ingeniería Mecánica
dc.description.notesIncluye anexos
dc.contributor.researchgroupGrupo de Investigación en Biomecánica / Universidad Nacional de Colombia Gibm-Uncb
dc.description.degreelevelMaestría
dc.description.degreenameMagíster en Ingeniería Mecánica
dc.description.researchareaBiomecánica computacional
dc.identifier.instnameUniversidad Nacional de Colombia
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourlhttps://repositorio.unal.edu.co/
dc.publisher.facultyFacultad de Ingeniería
dc.publisher.placeBogotá, Colombia
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotá
dc.relation.indexedBireme
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.decsPresión Intraocular
dc.subject.decsIntraocular Pressure
dc.subject.decsMedidas del Movimiento Ocular
dc.subject.decsEye Movement Measurements
dc.subject.decsOptic Nerve /physiology
dc.subject.decsNervio Óptico/fisiología
dc.subject.proposalBiomecánica
dc.subject.proposalMovimientos oculares
dc.subject.proposalNervio óptico
dc.subject.proposalElementos finitos
dc.subject.proposalOjo
dc.subject.proposalEye
dc.subject.proposalOptic nerve
dc.subject.proposalBiomechanics
dc.subject.proposalEye movements
dc.subject.proposalFinite element method
dc.title.translatedInfluence of the ocular movements on the biomechanics of the optic nerve head
dc.type.coarhttp://purl.org/coar/resource_type/c_bdcc
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.contentText
dc.type.redcolhttp://purl.org/redcol/resource_type/TM
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2
dcterms.audience.professionaldevelopmentEstudiantes
dcterms.audience.professionaldevelopmentInvestigadores
dc.contributor.orcidAlarcón-Castiblanco, Juan David [0000-0001-8506-0130]


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