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Comparación de fórmulas biométricas para el cálculo del poder del lente intraocular IQ
dc.contributor.advisor | Tello Hernández, Alejandro | spa |
dc.contributor.author | Cabal López, Pablo Daniel | spa |
dc.date.accessioned | 2020-06-26T20:01:42Z | |
dc.date.available | 2020-06-26T20:01:42Z | |
dc.date.issued | 2018-06-07 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12749/1787 | |
dc.description.abstract | Las causas de compromiso visual definido como una disminución de la agudeza visual (AV) menor de 20/40 en la escala de Snellen, y de ceguera definido como una AV igual o peor a 20/200 a nivel mundial son múltiples. La catarata definida como la opacificación del cristalino de cualquier etilologia sigue siendo la principal causa de ceguera prevenible y reversible a nivel mundial(1) Se estima que para el año 2004 había solo en Estados Unidos 3.4 millones de individuos mayores de 40 años afectados por esta condición.(2) La disminución de la AV es uno de los factores de riesgo más importantes para la afectación de la calidad de vida de los individuos, esto genera un costo importante para los diferentes sistemas de salud teniendo en cuenta que este tipo de personas son más proclives a sufrir de accidentes y sus habilidades físicas y sociales se ven profundamente comprometidas. Es por esto que se considera como un problema de Salud Pública a nivel mundial, y de ahí la importancia tanto de diagnosticarla como de poder tratarla a tiempo antes de que ocurran complicaciones oculares relacionadas con el crecimiento del cristalino que puedan llevar a comprometer la visión de forma permanente e irreversible. Metodología Estudio de cohorte retrospectiva con datos secundarios de base de datos anonimizada de 98 pacientes que fueron intervenidos de cirugía de catarata con colocación de lente intraocular SN60WF IQ de Alcon durante los años 2015 y 2017 en el centro oftalmológico Virgilio Galvis, con longitudes axiales entre 22 y 26mm y operados por un mismo cirujano. Resultados En conjunto la fórmula SRK-T2 tiene el mejor desempeño y la fórmula con el menor desempeño es la Haigis sin diferencia estadísticamente significativa entre ellas. La fórmula biométrica que mejor despeño tuvo teniendo en cuenta el porcentaje y número de pacientes dentro de las 0.5D de error dióptrico predicho fue la Hill-RBF y la de menor desempeño la Haigis nuevamente sin tampoco encontrarse una diferencia estadísticamente significativa entre ellas. Los resultados de las demás fórmulas son muy similares entre ellos. Conclusiones Teniendo en cuenta los resultados en la clasificación de errores de predicción dentro de las 0.5D y de la clasificación de los promedios de error absoluto de predicción, se puede concluir sin significancia estadística que la fórmula que tiende a tener mejor desempeño al calcular el poder dióptrico con la constante 119.0 optimizada por la ULIB para el lente intraocular IQ en pacientes con longitudes axiales de 22-26 mm es la Hill-RBF y que la que menor desempeño tiende a tener es la Haigis. | spa |
dc.description.tableofcontents | • Resumen del Proyecto • Justificación • Marco Teórico • Estado del Arte • Objetivos • Metodología • Resultados • Discusión • Conclusiones | spa |
dc.format.mimetype | application/pdf | spa |
dc.language.iso | spa | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.5/co/ | * |
dc.title | Comparación de fórmulas biométricas para el cálculo del poder del lente intraocular IQ | spa |
dc.title.translated | Comparison of biometric formulas for calculating the power of the IQ intraocular lens | eng |
dc.degree.name | Especialista en Oftalmología | spa |
dc.coverage | Bucaramanga (Santander, Colombia) | spa |
dc.publisher.grantor | Universidad Autónoma de Bucaramanga UNAB | spa |
dc.rights.local | Abierto (Texto Completo) | spa |
dc.publisher.faculty | Facultad Ciencias de la Salud | spa |
dc.publisher.program | Especialización en Oftalmología | spa |
dc.description.degreelevel | Especialización | spa |
dc.type.driver | info:eu-repo/semantics/masterThesis | |
dc.type.local | Tesis | spa |
dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | |
dc.subject.keywords | Biometric formula | eng |
dc.subject.keywords | Waterfall | eng |
dc.subject.keywords | Visual acuity | eng |
dc.subject.keywords | Quality of life | eng |
dc.subject.keywords | Intraocular lens | eng |
dc.subject.keywords | Medicine | eng |
dc.subject.keywords | Ophthalmology | eng |
dc.subject.keywords | Research | eng |
dc.subject.keywords | Refraction of light | eng |
dc.subject.keywords | Cataract surgery | eng |
dc.identifier.instname | instname:Universidad Autónoma de Bucaramanga - UNAB | spa |
dc.identifier.reponame | reponame:Repositorio Institucional UNAB | spa |
dc.type.hasversion | info:eu-repo/semantics/acceptedVersion | |
dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
dc.rights.accessrights | http://purl.org/coar/access_right/c_abf2 | spa |
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dc.contributor.cvlac | https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001009125 | * |
dc.contributor.googlescholar | https://scholar.google.es/citations?hl=es#user=puxZHKYAAAAJ | * |
dc.contributor.scopus | https://www.scopus.com/authid/detail.uri?authorId=6603664598 | * |
dc.subject.lemb | Fórmula biométrica | spa |
dc.subject.lemb | Catarata | spa |
dc.subject.lemb | Agudeza visual | spa |
dc.subject.lemb | Calidad de vida | spa |
dc.subject.lemb | Lente intraocular | spa |
dc.subject.lemb | Medicina | spa |
dc.subject.lemb | Oftalmología | spa |
dc.subject.lemb | Investigaciones | spa |
dc.description.abstractenglish | The causes of visual impairment defined as a decrease in visual acuity (VA) less than 20/40 on the Snellen scale, and of blindness defined as VA equal to or worse than 20/200 worldwide are multiple. Cataract defined as the opacification of the lens of any ethylology continues to be the main cause of preventable and reversible blindness worldwide (1) It is estimated that in 2004 there were only 3.4 million individuals over 40 years of age affected by this condition in the United States. (2) The decrease in VA is one of the most important risk factors for affecting the quality of life of individuals, this generates a significant cost for the different health systems, taking into account that these types of people are more prone to suffer accident and their physical and social skills are deeply compromised. This is why it is considered a Public Health problem worldwide, and hence the importance of both diagnosing it and being able to treat it in time before ocular complications related to lens growth occur that may lead to compromise the vision of permanently and irreversibly. Methodology Retrospective cohort study with secondary data from an anonymized database of 98 patients who underwent cataract surgery with placement of the Alcon SN60WF IQ intraocular lens during the years 2015 and 2017 at the Virgilio Galvis ophthalmological center, with axial lengths between 22 and 26mm and operated by the same surgeon. Results Overall, the SRK-T2 formula has the best performance and the formula with the lowest performance is the Haigis with no statistically significant difference between them. The biometric that had the best performance formula taking into account the percentage and number of patients within 0.5D of predicted diopter error was Hill-RBF and the one with the lowest performance was Haigis again, without finding a statistically significant difference between them. The results of the other formulas are very similar to each other. Conclusions Taking into account the results in the classification of prediction errors within 0.5D and of the classification of the averages of absolute prediction error, it can be concluded without statistical significance that the formula that tends to have better performance when calculating the diopter power with the constant 119.0 optimized by the ULIB for the IQ intraocular lens in patients with axial lengths of 22-26 mm is the Hill-RBF and the lowest performance tends to be the Haigis. | eng |
dc.subject.proposal | Refracción de la luz | |
dc.subject.proposal | Cirugía de catarata | |
dc.type.redcol | http://purl.org/redcol/resource_type/TM | |
dc.rights.creativecommons | Atribución-NoComercial-SinDerivadas 2.5 Colombia | * |
dc.coverage.campus | UNAB Campus Bucaramanga | spa |
dc.description.learningmodality | Modalidad Presencial | spa |