Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 6 de 6
Filter
1.
Arch. Soc. Esp. Oftalmol ; 90(3): 106-111, mar. 2015. tab, graf
Article in Spanish | IBECS | ID: ibc-136782

ABSTRACT

OOBJETIVO: Estudiar el efecto de la cirugía de las cataratas congénitas unilaterales sobre el crecimiento ocular y el aplanamiento corneal. MÉTODOS: Realizamos un estudio transversal sobre 59 pacientes intervenidos de cataratas congénitas unilaterales. La mediana de edad de los pacientes en el momento del diagnóstico fue de 17 meses (rango intercuartílico: 5-39 meses), la mediana de edad en el momento de la intervención fue de 28 meses (rango intercuartílico: 8-52 meses) y el tiempo medio de seguimiento fue de 149,7 ± 69,9 meses (rango: 30-319 meses). Se midió la longitud axial y la curvatura corneal de ambos ojos en todos los pacientes, tanto los operados de catarata congénita como los no operados. Estos valores fueron comparados entre sí. RESULTADOS: No se evidencian diferencias estadísticamente significativas entre ambos ojos (operados y no operados) respecto a la longitud axial (p = 0,327, prueba t de Student) ni a la curvatura corneal (p = 0,078, prueba t de Student). Al realizar un subanálisis dependiendo de la agudeza visual y la edad de los pacientes en el momento de la intervención, encontramos diferencias estadísticamente significativas solo respecto a la longitud axial en el grupo de pacientes que no presentan ambliopía profunda (p = 0,007, prueba t de Student), con menor longitud axial en los ojos intervenidos respecto a los ojos sanos. CONCLUSIONES: No encontramos cambios significativos en el crecimiento axial de los ojos intervenidos de catarata congénita unilateral respecto a sus ojos adelfos. Solo encontramos menor longitud axial en los ojos intervenidos con respecto a los ojos sanos en el grupo que no presentaba ambliopía profunda. No se hallaron diferencias respecto al aplanamiento corneal en los ojos operados con respecto a los ojos adelfos tras la cirugía de las cataratas congénitas unilaterales


OBJECTIVE: The aim of this article is to study the effect of unilateral congenital cataract surgery on ocular growth and corneal flattening. METHODS: This is a cross-sectional study of 59 patients operated on due to a unilateral congenital cataract. The median age of the patients at the time of diagnosis was 17 months (interquartile range, 5-39 months). The median age at cataract the time of surgery was 28 months (interquartile range, 8-52 months), and the mean follow-up between cataract surgery and assessments was 149.7 ± 69.9 months (range, 30-319 months). Axial length and corneal curvature were measured in both operated and non-operated eyes, comparing the results between them. RESULTS: There were no statistically significant differences for axial length growth or corneal flattening between operated and non-operated eyes: axial length (P=.327, Student t test) and corneal curvature (P=.078, Student t test). A sub-analysis was performed using the visual acuity and the age of the patient at the time of surgery. The only statistically significant data (P=.007, Student t test) was a lower axial length in operated eyes compared to non-operated eyes, in the non-deep-amblyopia group. CONCLUSIONS: No significant axial length growth modifications were observed between operated and non-operated eyes. Only the non-deep-amblyopia group presented with a lower axial length in the operated eyes compared to non-operated eyes. No significant differences in corneal flattening were found between groups after unilateral congenital cataract surgery


Subject(s)
Female , Humans , Male , Cataract Extraction , Cataract Extraction/methods , Eye Injuries/chemically induced , Eye Injuries/complications , Hyperopia/congenital , Biometry/methods , Cataract Extraction/instrumentation , Cataract Extraction/rehabilitation , Eye Injuries/metabolism , Eye Injuries/pathology , Hyperopia/pathology , Biometry/instrumentation
2.
Arch Soc Esp Oftalmol ; 90(3): 106-11, 2015 Mar.
Article in English, Spanish | MEDLINE | ID: mdl-25596651

ABSTRACT

OBJECTIVE: The aim of this article is to study the effect of unilateral congenital cataract surgery on ocular growth and corneal flattening. METHODS: This is a cross-sectional study of 59 patients operated on due to a unilateral congenital cataract. The median age of the patients at the time of diagnosis was 17 months (interquartile range, 5-39 months). The median age at cataract the time of surgery was 28 months (interquartile range, 8-52 months), and the mean follow-up between cataract surgery and assessments was 149.7±69.9 months (range, 30-319 months). Axial length and corneal curvature were measured in both operated and non-operated eyes, comparing the results between them. RESULTS: There were no statistically significant differences for axial length growth or corneal flattening between operated and non-operated eyes: axial length (P=.327, Student t test) and corneal curvature (P=.078, Student t test). A sub-analysis was performed using the visual acuity and the age of the patient at the time of surgery. The only statistically significant data (P=.007, Student t test) was a lower axial length in operated eyes compared to non-operated eyes, in the non-deep-amblyopia group. CONCLUSIONS: No significant axial length growth modifications were observed between operated and non-operated eyes. Only the non-deep-amblyopia group presented with a lower axial length in the operated eyes compared to non-operated eyes. No significant differences in corneal flattening were found between groups after unilateral congenital cataract surgery.


Subject(s)
Cataract Extraction , Cataract/congenital , Cornea/ultrastructure , Eye/growth & development , Amblyopia/etiology , Amblyopia/pathology , Anthropometry , Aphakia, Postcataract/complications , Cataract/complications , Cataract Extraction/adverse effects , Child , Child, Preschool , Contact Lenses , Cross-Sectional Studies , Female , Follow-Up Studies , Humans , Infant , Lens Implantation, Intraocular , Male , Pseudophakia/complications
3.
Arch Soc Esp Oftalmol ; 87(10): 315-9, 2012 Oct.
Article in Spanish | MEDLINE | ID: mdl-23021228

ABSTRACT

OBJECTIVE: To evaluate the effectiveness of various surgical procedures in the management of posterior capsule and anterior vitreous on the prevention of visual axis opacification. SUBJECTS, MATERIAL AND METHODS: We retrospectively reviewed 120 eyes operated for unilateral congenital cataracts, with a median age at the time of cataract surgery of 21 months (interquartile range, 6-52 months). The eyes were divided into 3 groups: group 1 (eyes with intact posterior capsule, n=39), group 2 (eyes with posterior continuous curvilinear capsulorhexis, n=38), group 3 (eyes with posterior continuous curvilinear capsulorhexis and anterior vitrectomy, n=43). RESULTS: To determine the effect of posterior continuous curvilinear capsulorhexis on visual axis opacification we compared group 2 with group 1 (chi-square Pearson test, P=.281), therefore in this study the implementation of the posterior continuous curvilinear capsulorhexis did not show any decreases in the incidence of visual axis opacification. To study the effect of posterior continuous curvilinear capsulorhexis associated anterior vitrectomy, we compared group 3 with group 1 (chi-square Pearson test, P=.014), demonstrating that the combination of both techniques (posterior continuous curvilinear capsulorhexis and anterior vitrectomy) decreases the incidence of visual axis opacification. CONCLUSION: Posterior continuous curvilinear capsulorhexis as a single technique did not show any decrease in the incidence of visual axis opacification. Posterior continuous curvilinear capsulorhexis together with anterior vitrectomy are required to prevent visual axis opacification and to decrease reoperation rate.


Subject(s)
Capsule Opacification/prevention & control , Capsulorhexis/methods , Cataract/congenital , Postoperative Complications/prevention & control , Vitrectomy/methods , Child , Child, Preschool , Female , Humans , Infant , Male , Retrospective Studies , Treatment Outcome
4.
Arch. Soc. Esp. Oftalmol ; 87(10): 315-319, oct. 2012. tab, graf
Article in Spanish | IBECS | ID: ibc-103877

ABSTRACT

Objetivo: Evaluar la efectividad de varios procedimientos quirúrgicos en el manejo de la cápsula posterior y del vítreo anterior sobre la prevención de la opacificación del eje visual. Sujetos, material y métodos: Realizamos un estudio retrospectivo sobre 120 ojos intervenidos de cataratas congénitas unilaterales con una mediana de edad en el momento de la cirugía de 21 meses (rango intercuartílico, 6-52 meses). La población se divide en 3 grupos: grupo 1(ojos con cápsula posterior íntegra, n = 39), grupo 2 (ojos con capsulorrexis posterior circular continua, n = 38) y grupo 3 (ojos con capsulorrexis posterior circular continua y vitrectomía anterior, n = 43). Resultados: Respecto al efecto de la capsulorrexis posterior circular sobre la opacificación del eje visual se comparan el grupo 2 con el grupo 1 (chi-cuadrado de Pearson, p = 0,281),por tanto, la realización de la capsulorrexis posterior circular no ha demostrado en este trabajo disminuir la incidencia de opacificación del eje visual. En cuanto al efecto de la capsulorrexis posterior circular asociada a la vitrectomía anterior, se comparan el grupo 3 con el grupo 1 (chi-cuadrado de Pearson, p = 0,014), lo que demuestra que la unión de ambas técnicas (capsulorrexis posterior circular y vitrectomía anterior) sí disminuye la incidenciade opacificación del eje visual. Conclusiones: La capsulorrexis posterior circular como única técnica no ha demostrado disminuirla incidencia de la opacificación del eje visual, siendo necesaria la realización de la capsulorrexis posterior circular asociada a la vitrectomía anterior para prevenir la opacificación del eje visual y disminuir la tasa de reintervenciones(AU)


Objective: To evaluate the effectiveness of various surgical procedures in the management of posterior capsule and anterior vitreous on the prevention of visual axis opacification. Subjects, material and methods: We retrospectively reviewed 120 eyes operated for unilateral congenital cataracts, with a median age at the time of cataract surgery of 21 months (interquartile range, 6-52 months). The eyes were divided into 3 groups: group 1 (eyes with intact posterior capsule, n = 39), group 2 (eyes with posterior continuous curvilinear capsulorhexis, n = 38), group 3 (eyes with posterior continuous curvilinear capsulorhexis and anteriorvitrectomy, n = 43). Results: To determine the effect of posterior continuous curvilinear capsulorhexis on visualaxis opacification we compared group 2 with group 1 (chi-square Pearson test, P =0.281),therefore in this study the implementation of the posterior continuous curvilinear capsulorhexis did not show any decreases in the incidence of visual axis opacification. To study the effect of posterior continuous curvilinear capsulorhexis associated anterior vitrectomy,we compared group 3 with group 1 (chi-square Pearson test, P =0.014), demonstrating that the combination of both techniques (posterior continuous curvilinear capsulorhexis and anterior vitrectomy) decreases the incidence of visual axis opacification. Conclusion: Posterior continuous curvilinear capsulorhexis as a single technique did not show any decrease in the incidence of visual axis opacification. Posterior continuous curvilinear capsulorhexis together with anterior vitrectomy are required to prevent visual axis opacification and to decrease reoperation rate(AU)


Subject(s)
Humans , Male , Female , Cataract , Vitrectomy , Retrospective Studies
5.
Rev. esp. med. nucl. (Ed. impr.) ; 19(7): 472-478, nov. 2000.
Article in Es | IBECS | ID: ibc-5825

ABSTRACT

Introducción: El retinoblastoma (RB) es el tumor maligno intraocular más común en la infancia. La enolasa neuronal específica (ENE) se utiliza como marcador tumoral en diversas enfermedades oncológicas (sobre todo en el neuroblastoma y en el carcinoma pulmonar de células pequeñas). En este trabajo mostramos nuestra experiencia en el uso de la ENE y explicamos la importancia que pensamos tiene la determinación de esta enzima en casos de RB. Material y Métodos: Se realizan determinaciones en Humor acuoso (HA) y suero en 17 RB mediante un análisis radioinmunométrico y se comparan con los valores del grupo control formado por 8 pacientes en los que se ha excluido el diagnóstico de RB y otras patologías que pudieran alterar la determinación de ENE. También se estudia la posible correlación entre los niveles de ENE y los diferentes estadios tumorales (de Reese-Elsworth y anatomoclínico), así como el tipo tumoral (exofítico y mixto).Resultados: El 88 por ciento de los pacientes con RB presentaron elevaciones patológicas de los niveles de ENE en HA y en suero, mientras que en el grupo de control en el 100 por ciento de los pacientes (si excluimos una muestra no válida por la presencia de abundantes hematíes en HA) los niveles fueron inferiores al límite superior de la normalidad. No encontramos correlación entre los niveles de ENE en HA y suero y los diferentes estadios tumorales. Sin embargo el grupo de los RB de tipo tumoral mixto presentó una media en HA significativamente mayor (p<0,01) que el grupo de los RB exofíticos. Conclusión: La determinación de la ENE en HA tiene valor en el diagnóstico diferencial en pacientes en los que se sospecha RB de difícil diagnóstico y en el diagnóstico de recidivas. En suero estaría destinada fundamentalmente al seguimiento del la enfermedad y la detección precoz de posibles metástasis (AU)


Subject(s)
Child, Preschool , Male , Infant , Female , Humans , Immunoradiometric Assay , Phosphopyruvate Hydratase , Retinoblastoma , Retinal Neoplasms
6.
Rev Esp Med Nucl ; 19(7): 472-8, 2000 Dec.
Article in Spanish | MEDLINE | ID: mdl-11171503

ABSTRACT

INTRODUCTION: Retinoblastomas (RB) are the most common malignant intraocular tumors in childhood. The neuron specific enolase (NSE) is used as a tumor marker in different malignant diseases (mainly in neuroblastomas and lung carcinoma of small cells). In this work we report our experience using NSE and the role we consider that it plays in the determination of this enzyme in RB cases. MATERIALS AND METHODS: NSE determinations in aqueous humor (AH) and serum were carried out in 17 RB by means of a radioimmunometric assay and were compared with those values obtained in a control group composed of 8 subjects in whom the RB diagnosis as well as other diseases that could alter its determination had been ruled out. The possible correlation between NSE levels and different tumor stages (Reese-Elsworth and histological-clinical), as well as the tumor type (exophytic and mixed) were also studied. RESULTS: NSE levels were increased in AH and serum in 88% of RB patients and were normal in all the subjects in the control group (when a sample which was considered to be non-valid due to the presence of red cells in AH was excluded). No correlation between NSE levels in AH and serum and the different tumor stages was found. Nevertheless, the RB group of mixed tumor type showed a significantly higher mean in AH (p<0.01) than the RB exophytic group. CONCLUSION: NSE determination in AH is of value in the differential diagnosis in patients in whom RB is suspected but difficult to diagnose as well as in the diagnosis of relapses. Serum determinations are mainly useful in the follow-up and in the early diagnosis of possible metastases.


Subject(s)
Phosphopyruvate Hydratase/analysis , Retinal Neoplasms/metabolism , Retinoblastoma/metabolism , Child, Preschool , Female , Humans , Immunoradiometric Assay , Infant , Male
SELECTION OF CITATIONS
SEARCH DETAIL
...