15 results on '"M.P. Villegas-Pérez"'
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2. Mapping the thickness changes on retinal layers segmented by spectral-domain optical coherence tomography using the posterior pole program in glaucoma
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M. del-Rio-Vellosillo, M.P. Villegas-Pérez, M. Tudela-Molino, A. Palazón-Cabanes, C. Gómez-Molina, Jose Javier Garcia-Medina, and A. Guardiola-Fernández
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0301 basic medicine ,medicine.medical_specialty ,Retina ,Retinal pigment epithelium ,genetic structures ,business.industry ,Posterior pole ,Nerve fiber layer ,Retinal ,General Medicine ,Inner plexiform layer ,eye diseases ,03 medical and health sciences ,chemistry.chemical_compound ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,chemistry ,Ophthalmology ,Inner nuclear layer ,030221 ophthalmology & optometry ,medicine ,sense organs ,business ,Ganglion cell layer - Abstract
Objectives To evaluate changes in retinal layers of the macula (mRLs) using OCT posterior pole program (PPP) in primary open-angle glaucoma (POAG). Material and methods The study included 128 patients with POAG and 103 healthy controls who had PPP maps (macular grid 8 × 8) drawn by SD-OCT. Only one eye per patient was studied. The 9 mRLs were automatically segmented by prototype software, obtaining: a macular retinal nerve fiber layer (mRNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform + nuclear layer, photoreceptor layer, retinal pigment epithelium (RPE), outer retina and RPE + outer retina. Thickness values were obtained on 64 cells of the grid for each mRL, and mean thickness of superior and inferior hemispheres were calculated. Comparisons of mean thickness of these hemispheres and thickness of each cell between groups were determined. Differences in the cell by cell comparisons were represented quantitatively by heat maps for each mRL. Results Photoreceptors and RPE were found in POAG group when comparing thickness of hemispheres, thinning of mRNFL, GCL, IPL, and thickening of INL. Heat maps showed symmetrical thinning patters between superior and inferior hemispheres in inner retinal layers (except for INL) and asymmetrical thickening patters in outer retinal layers in GPAA group. Conclusions There are thickness changes in all mRLs in POAG, when studied by PPP. Thinning of inner layers (except for INL), and thickening of outer layers in POAG show different symmetry patterns in relation to horizontal meridian.
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- 2018
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3. Mapeo de los cambios de grosor en el glaucoma de las capas retinianas maculares segmentadas usando el programa de polo posterior de la tomografía de coherencia óptica de dominio espectral
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J.J. García-Medina, A. Palazón-Cabanes, A. Guardiola-Fernández, C. Gómez-Molina, M. del-Rio-Vellosillo, M. Tudela-Molino, and M.P. Villegas-Pérez
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0301 basic medicine ,Physics ,medicine.medical_specialty ,Prototype software ,genetic structures ,Nerve fibre layer ,eye diseases ,03 medical and health sciences ,Ophthalmology ,030104 developmental biology ,0302 clinical medicine ,030221 ophthalmology & optometry ,medicine ,sense organs ,Thickening - Abstract
espanolObjetivos Evaluar los cambios de las capas retinianas maculares (CRM) usando el programa de OCT de polo posterior (PP) en el glaucoma primario de angulo abierto (GPAA). Material y metodos Ciento veintiocho pacientes con GPAA y 103 controles sanos con mapas de PP (rejilla macular 8 × 8) obtenidos mediante SD-OCT fueron incluidos. Solo un ojo por paciente fue considerado. Entonces 9 CRM se segmentaron automaticamente mediante un software prototipo obteniendo: capas de fibras nerviosas maculares, capa de celulas ganglionares (GCL), plexiforme interna, nuclear interna (INL), plexiforme + nuclear externa, capa de fotorreceptores, epitelio pigmentario de la retina (RPE) y retina externa completa. Se obtuvieron los valores de grosor de las 64 celdas de la rejilla para cada una de las CRM y se calcularon los grosores promedio de los hemisferios superior e inferior. Se realizo una comparacion de los grosores promedio de dichos hemisferios y de los grosores celda a celda entre los 2 grupos. Las diferencias en comparaciones celda a celda fueron representadas mediante mapas de calor para cada CRM. Resultados Al comparar los grosores de los hemisferios se encontraron adelgazamientos en capas de fibras nerviosas maculares, capa de celulas ganglionares y plexiforme interna y engrosamientos en INL, fotorreceptores y RPE en GPAA. Los mapas de calor mostraron patrones de adelgazamiento simetricos entre ambos hemisferios (superior e inferior) en capas de la retina interna (excepto INL) y patrones de engrosamiento asimetricos en las CRM externas en GPAA. Conclusiones Existen patrones de cambio en el grosor en todas las CRM en el GPAA estudiadas mediante el programa PP. Los adelgazamientos de las capas internas (excepto INL) y los engrosamientos de las externas en el GPAA presentan diferentes patrones de simetria respecto al meridiano horizontal. EnglishObjectives To evaluate changes in retinal layers of the macula (mRLs) using OCT posterior pole program (PPP) in primary open-angle glaucoma (POAG). Material and methods The study included 128 patients with POAG and 103 healthy controls who had PPP maps (macular grid 8 × 8) drawn by SD-OCT. Only one eye per patient was studied. The 9 mRLs were automatically segmented by prototype software, obtaining: a macular retinal nerve fibre layer (mRNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), inner nuclear layer (INL), outer plexiform + nuclear layer, photoreceptor layer, retinal pigment epithelium (RPE), outer retina and RPE + outer retina. Thickness values were obtained on 64 cells of the grid for each mRL, and mean thickness of superior and inferior hemispheres were calculated. Comparisons of mean thickness of these hemispheres and thickness of each cell between groups were determined. Differences in the cell by cell comparisons were represented quantitatively by heat maps for each mRL. Results Photoreceptors and RPE were found in POAG group when comparing thickness of hemispheres, thinning of mRNFL, GCL, IPL, and thickening of INL. Heat maps showed symmetrical thinning patters between superior and inferior hemispheres in inner retinal layers (except for INL) and asymmetrical thickening patters in outer retinal layers in GPAA group. Conclusions There are thickness changes in all mRLs in POAG, when studied by PPP. Thinning of inner layers (except for INL), and thickening of outer layers in POAG show different symmetry patterns in relation to horizontal meridian.
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- 2018
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4. Guía de estilos de vida y glaucoma ( i ). Deporte y actividades
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M.P. Villegas-Pérez, I. Rodríguez-Agirretxe, F. Ussa-Herrera, L. Pablo-Júlvez, E. Millá-Griñó, S. Duch-Tuesta, J.L. Urcelay-Segura, Alfonso Anton-Lopez, Javier Moreno-Montañés, P. Corsino Fernández-Vila, Julian Garcia-Feijoo, and Francisco J. Muñoz-Negrete
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Ophthalmology - Abstract
Resumen Objetivos El aumento de la calidad y de la esperanza de vida y el hecho de que el glaucoma se diagnostique cada vez mas precozmente hace preguntarse a muchos pacientes si afectan a su enfermedad determinados deportes, actividades o aficiones. El objetivo de este trabajo es establecer unas guias para aconsejar a los pacientes con base en la evidencia cientifica de los trabajos publicados. Metodos Revision de todos los trabajos publicados sobre glaucoma y deportes u otras actividades. Los trabajos fueron clasificados segun el nivel de evidencia cientifica basada en la clasificacion del Oxford Centre for Evidence-Based Medicine. Resultados Las actividades aerobicas son beneficiosas para el paciente. Se han de evitar deportes o tecnicas de relajacion tipo yoga con maniobras de Valsalva o colocacion de la cabeza en posicion inferior. Tambien se deben evitar los cambios bruscos en altura. El calor intenso no parece influir en el glaucoma, pero el frio intenso puede afectar a pacientes con disregulacion vascular. Las actividades de vision proxima disminuyen levemente la presion intraocular. El uso de instrumentos de viento puede elevar la presion intraocular dependiendo de la tecnica utilizada. Conclusiones Ciertos deportes y actividades pueden tener una influencia en la aparicion o la progresion del glaucoma. Los especialistas en glaucoma deben tener informacion adecuada sobre la evidencia cientifica de las publicaciones para poder aconsejar apropiadamente a los pacientes.
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- 2018
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5. Guía de estilos de vida y glaucoma ( II ). Dieta, suplementos, drogas, sueño, embarazo e hipertensión arterial
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P. Corsino Fernández-Vila, Javier Moreno-Montañés, Francisco J. Muñoz-Negrete, L. Pablo-Júlvez, I. Rodríguez-Agirretxe, F. Ussa-Herrera, M.P. Villegas-Pérez, S. Duch-Tuesta, J.L. Urcelay-Segura, Alfonso Anton-Lopez, E. Millá-Griñó, and Julian Garcia-Feijoo
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Gynecology ,03 medical and health sciences ,Ophthalmology ,medicine.medical_specialty ,0302 clinical medicine ,business.industry ,030221 ophthalmology & optometry ,medicine ,Glaucoma ,business ,medicine.disease ,030217 neurology & neurosurgery - Abstract
Resumen Objetivos Establecer guias para aconsejar a los pacientes respecto a la relacion entre dieta y habitos de vida y glaucoma. Metodos Revision de los trabajos publicados sobre glaucoma y la dieta, la ingesta de suplementos, el consumo de drogas o el tabaco, el sueno, el embarazo y la hipertension. Los trabajos fueron clasificados segun el Oxford Center for Evidence-Based Medicine. Resultados La evidencia sobre la relacion entre la dieta o el uso de suplementos y la incidencia o la progresion del glaucoma es insuficiente para justificar una recomendacion. Si bien algunos estudios en glaucoma de tension normal sugieren que el Ginkgo biloba podria reducir la progresion, no permiten recomendar su uso generalizado. Los estudios sobre tabaco no demuestran claramente una relacion entre consumo de tabaco e incidencia del glaucoma. La marihuana no es un tratamiento util para el glaucoma. Los resultados sobre la relacion entre la apnea del sueno y glaucoma son heterogeneos, pero si parece conveniente que los pacientes con grado moderado o severo de apnea sean evaluados para descartar glaucoma. El embarazo no suele afectar al curso de la enfermedad, pero varios medicamentos hipotensores pueden ser nocivos para el feto. La hipotension nocturna es un factor de riesgo de empeoramiento del glaucoma. Conclusiones Ciertas costumbres, circunstancias o enfermedades pueden tener una influencia en la aparicion o progresion del glaucoma. Es importante conocer la evidencia cientifica existente para poder aconsejar adecuadamente a los pacientes.
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- 2018
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6. Lifestyles guide and glaucoma ( i ). Sports and activities
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Javier Moreno-Montañés, L. Pablo-Júlvez, M.P. Villegas-Pérez, J.L. Urcelay-Segura, Julian Garcia-Feijoo, y Grupo Español de Estilos de Vida y Glaucoma, I. Rodríguez-Agirretxe, F. Ussa-Herrera, S. Duch-Tuesta, P. Corsino Fernández-Vila, Francisco J. Muñoz-Negrete, E. Millá-Griñó, and Alfonso Anton-Lopez
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Intraocular pressure ,medicine.medical_specialty ,genetic structures ,business.industry ,Glaucoma ,General Medicine ,medicine.disease ,Affect (psychology) ,eye diseases ,Scientific evidence ,03 medical and health sciences ,Near vision ,0302 clinical medicine ,030221 ophthalmology & optometry ,Life expectancy ,medicine ,Physical therapy ,sense organs ,030212 general & internal medicine ,business - Abstract
Purposes The increase in quality and life expectancy, often leads to many patients asking the glaucoma specialist whether some sports, activities or hobbies would affect their illness. The aim of this article is to establish guidelines for patients, based on the scientific evidence of published papers. Methods Review of all published articles on glaucoma and sports or other activities. The papers were classified according to the level of scientific evidence based on the Oxford Centre for Evidence-Based Medicine classification. Results Aerobic sports are beneficial for the patient. Yoga indoor sports or relaxation techniques should be avoided if Valsalva maneuvers are performed or the head is placed very low. Also, the patients must avoid sudden changes in height. Intense heat does not seem to lead to progression of glaucoma, but intense cold can affect patients with vascular dysregulation. Activities using the near vision slightly reduce the intraocular pressure. The use of wind instruments may raise intraocular pressure, depending on the technique used. Conclusions Certain sports and activities may have an influence on the onset or progression of glaucoma. Glaucoma specialists should have adequate information about the scientific evidence in the publications, in order to properly advise the patients.
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- 2018
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7. Lifestyles guide and glaucoma (II). Diet, supplements, drugs, sleep, pregnancy, and systemic hypertension
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A. Antón-López, J. Moreno-Montañés, S. Duch-Tuesta, P. Corsino Fernández-Vila, J. García-Feijoo, E. Millá-Griñó, F.J. Muñoz-Negrete, L. Pablo-Júlvez, I. Rodríguez-Agirretxe, J.L. Urcelay-Segura, F. Ussa-Herrera, and M.P. Villegas-Pérez
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General Medicine - Published
- 2018
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8. Difficulties in the management of retinal capillary haemangiomas associated with von Hippel Lindau disease
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M. Pastor-Montoro, J.A. Martínez-Morales, M.P. Villegas-Pérez, and N. Hurtado-Montalbán
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medicine.medical_specialty ,endocrine system diseases ,genetic structures ,medicine.medical_treatment ,Vitrectomy ,Disease ,urologic and male genital diseases ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,Retinal capillary ,medicine ,Von Hippel–Lindau disease ,neoplasms ,business.industry ,General Medicine ,medicine.disease ,female genital diseases and pregnancy complications ,Surgery ,Left eye ,030221 ophthalmology & optometry ,Epiretinal membrane ,Intravitreal ranibizumab ,business ,Genetic diagnosis ,030217 neurology & neurosurgery - Abstract
Clinical case A 29-year-old female with bilateral retinal capillary haemangiomas (RCH). A genetic analysis was carried out due to the suspicion of von Hippel–Lindau (VHL) disease, with negative results on 2 occasions. There was progression of the RCH in the left eye, leading to a macular epiretinal membrane. The patient was treated with laser, intravitreal ranibizumab, and vitrectomy. Finally, a third genetic test detected a de novo mutation in the VHL gene, and led to the genetic diagnosis. Discussion VHL syndrome causes a complex ocular disease with a difficult diagnosis that requires early treatment of the RCH in order to modify its visual prognosis.
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- 2017
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9. Dificultades en el manejo de los hemangiomas capilares retinianos asociados a enfermedad de von Hippel-Lindau
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M. Pastor-Montoro, M.P. Villegas-Pérez, N. Hurtado-Montalbán, and J.A. Martínez-Morales
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03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,030221 ophthalmology & optometry ,030217 neurology & neurosurgery - Abstract
Resumen Caso clinico Mujer de 29 anos con hemangiomas capilares retinianos (HCR) bilaterales. Ante la sospecha clinica de enfermedad de von Hippel Lindau (VHL), se realizan estudios geneticos que son negativos en 2 ocasiones. Se produce progresion de los HCR del ojo izquierdo, con aparicion de membrana epimacular, que son tratados con laser, ranibizumab intravitreo y vitrectomia. Finalmente, el tercer estudio genetico detecta una mutacion de novo en el gen VHL que permite confirmar el diagnostico. Discusion El sindrome de VHL causa una enfermedad ocular compleja y de dificil diagnostico que requiere tratamiento precoz de los HCR para modificar el pronostico visual.
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- 2017
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10. Guidelines for treatment of chronic primary angle-closure glaucoma
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M.P. Villegas–Pérez, Javier Moreno-Montañés, Pilar Casas-Llera, N Guerri Monclus, Julian Garcia-Feijoo, L.E. Pablo, J.L. Urcelay-Segura, C. Méndez Hernández, Fernando Ussa, Francisco J. Muñoz-Negrete, Gema Rebolleda, and J. González-Martín-Moro
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Intraocular pressure ,medicine.medical_specialty ,business.industry ,General Medicine ,Guideline ,Evidence-based medicine ,Scientific evidence ,Surgery ,Clinical Practice ,Chronic primary angle closure glaucoma ,Quality of life ,medicine ,Intensive care medicine ,Surgical treatment ,business - Abstract
Objective To present a clinical practice guideline update on the medical, laser, and surgical treatment of primary angle closure glaucoma (PACG) in adults. Methods Following the formulation of key questions using the PICO scheme (Patient/Problem, Intervention, Comparison, Outcome), a systematic review was performed on the literature published to date, including international clinical practice guidelines. The AMSTAR and Risk of Bias tools were used for evaluating the quality of the information. The level of evidence and grade of recommendation were established following the Scottish Intercollegiate Guidelines Network (SIGN) system. Results Following the above methodology, recommendations of medical, laser and surgical treatment in adult PACG and levels of evidence are presented. Conclusions Although the level of scientific evidence for many of the questions raised is not very high, a review is presented on updated treatment recommendations for adult PACG. The limitations for the implementation of these recommendations is include two criteria: (a) most studies have been conducted in Asian populations, and (b) the effectiveness is measured almost exclusively in terms of reducing intraocular pressure, but limitations do not include visual function, quality of life or cost-effectiveness parameters.
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- 2015
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11. Guía terapéutica del glaucoma crónico por cierre angular primario
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Gema Rebolleda, Javier Moreno-Montañés, M.P. Villegas–Pérez, C. Méndez Hernández, Francisco J. Muñoz-Negrete, Pilar Casas-Llera, J. González-Martín-Moro, Fernando Ussa, L.E. Pablo, N Guerri Monclus, Julian Garcia-Feijoo, and J.L. Urcelay-Segura
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Ophthalmology - Abstract
Resumen Objetivo Realizacion de una guia de practica clinica actualizada sobre el tratamiento medico, laser y quirurgico del glaucoma por cierre angular primario (GCAP) en el adulto. Metodos Tras la formulacion de preguntas clave utilizando el esquema PICO (Paciente/Problema, Intervencion, Comparacion, Outcome/Resultado), se realiza una revision de la literatura publicada hasta el momento, incluyendo guias de practica clinica internacionales, utilizandose las herramientas AMSTAR y «Risk of Bias» para la evaluacion de la calidad de la informacion. El nivel de evidencia y la elaboracion del grado de recomendacion se establecieron siguiendo el sistema Scottish Intercollegiate Guidelines Network (SIGN). Resultados Siguiendo la metodologia expuesta, se presentan recomendaciones de tratamiento medico, laser y quirurgico en el GCAP del adulto y los niveles de evidencia. Conclusiones Aunque el nivel de evidencia cientifica para muchas de las preguntas planteadas no es muy alto, se presenta una revision actualizada de las recomendaciones terapeuticas en el GCAP del adulto. Entre las limitaciones para la aplicacion de estas recomendaciones se encuentra que la mayoria de los estudios han sido realizados en poblacion de origen asiatico, y que la eficacia se mide casi exclusivamente en terminos de reduccion de tension ocular y no en parametros de funcion visual, calidad de vida o coste-efectividad.
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- 2015
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12. Queratitis fúngica por Colletotrichum spp. A propósito de un caso
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M. Morcillo Guardiola, J. Miralles de Imperal Mora Figueroa, N. Hurtado Montalbán, M.P. Villegas–Pérez, and J.A. Martínez Morales
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Ophthalmology - Abstract
Resumen Caso clinico Paciente varon de 23 anos sin antecedentes personales de interes que acude por traumatismo con rama de limonero en ojo derecho hacia dos dias. En la biomicroscopia se observaba una erosion corneal central, un infiltrado estromal arboriforme blanquecino y un Tyndall +/++. El cultivo de raspado corneal fue positivo para Colletotrichum spp. El paciente respondio favorablemente a la anfotericina topica. Discusion Colletotrichum spp. constituye una causa infrecuente de queratitis, secundaria generalmente a erosiones ocasionadas por productos de origen vegetal, y debe ser incluido en el diagnostico diferencial de las queratitis fungicas.
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- 2014
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13. Fungal keratitis caused by Colletotrichum spp. A presentation of case
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J. Miralles de Imperal Mora Figueroa, N. Hurtado Montalbán, M. Morcillo Guardiola, J.A. Martínez Morales, and M.P. Villegas–Pérez
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Pathology ,medicine.medical_specialty ,Past medical history ,Abstract case ,genetic structures ,biology ,business.industry ,General Medicine ,medicine.disease ,biology.organism_classification ,Dermatology ,eye diseases ,Keratitis ,Corneal erosion ,Colletotrichum ,medicine ,Fungal keratitis ,sense organs ,Presentation (obstetrics) ,Differential diagnosis ,business - Abstract
Case report A 23-year-old male with an unremarkable past medical history suffered an injury in the right eye two days prior to presentation due to a freak accident with a branch of a lemon tree. The slit-lamp examination showed a central corneal erosion with a white tree-shaped stromal infiltrate and Tyndall +/++ in anterior chamber. Cultivation of corneal scraping was positive for Colletotrichum spp. The patient responded favorably to topical amphotericin. Discussion Colletotrichum spp. is an uncommon cause of keratitis, usually secondary to corneal erosion caused by plant material and should be included in the differential diagnosis of fungal keratitis.
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- 2014
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14. Esthesioneuroblastoma: an atypical form of manifestation
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M. Redondo Manuel, J Miralles de Imperial, A. M. Gomez Ramirez, M.P. Villegas–Pérez, J. B Lopez LLoret, J. García González, I. Arcas Martinez-Salas, A. R. Gutierrez Ortega, and L. Valles San Leandro
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Nasal cavity ,Male ,Pathology ,medicine.medical_specialty ,Nose Neoplasms ,Esthesioneuroblastoma, Olfactory ,Nose neoplasm ,03 medical and health sciences ,0302 clinical medicine ,Esthesioneuroblastoma ,medicine ,Paralysis ,Oculomotor Nerve Diseases ,Humans ,Olfactory Neuroblastoma ,business.industry ,Trochlear nerve ,General Medicine ,Middle Aged ,medicine.disease ,Ophthalmology ,medicine.anatomical_structure ,030221 ophthalmology & optometry ,Orbital Neoplasms ,medicine.symptom ,Nasal Cavity ,business ,Olfactory epithelium ,030217 neurology & neurosurgery ,Orbit (anatomy) - Abstract
Esthesioneuroblastoma is a rare tumor that originates in the olfactory epithelium and can invade the orbit. We report a case in which the first symptom was a post-traumatic paralysis of the IV cranial nerve. Whether the tumor itself or the trauma or a combination of the two factors caused the paralysis is discussed.
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- 1994
15. 3413 Retinal ganglion cell survival after transient ischemia of the retina: Effects of intraocular injection of BDNF
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I. Sellés, M.P. Villegas-Pérez, and M. Vidal-Sanz
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Ophthalmology ,medicine.medical_specialty ,Retina ,medicine.anatomical_structure ,Transient ischemia ,Retinal ganglion cell ,business.industry ,medicine ,Giant retinal ganglion cells ,business ,Sensory Systems - Full Text
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