Factors associated with serous retinal detachment in highly myopic eyes with inferior posterior staphyloma. / Factores asociados con el desprendimiento neurosensorial macular en pacientes miopes magnos con estafiloma inferior.

PURPOSE: To investigate the factors associated with persistent serous retinal detachment in highly myopic eyes with inferior posterior staphyloma. METHODS: A total of 27 highly myopic patients (44 eyes) with an inferior posterior staphyloma were recruited. Serous retinal detachment was investigated; 13 eyes had persistent sub-macular fluid (study group), and 31 eyes lacked sub-macular fluid (control group). All patients underwent complete ophthalmologic examinations, including axial length measurement and fluorescein angiography (FA). Triton Deep Range Imaging (DRI) optical coherence tomography (OCT) (Topcon Corp., Tokyo, Japan) scans through the fovea measured choroidal thicknesses, macular bend height, and vitreoretinal interface factors. RESULTS: Of the 44 eyes, 13 had neurosensory retinal detachment and 31 did not. No significant differences were found in any of the studied variables (age, gender, spherical equivalence, axial length, vitreomacular traction, epiretinal membrane, internal limiting membrane detachment), except a higher macular bend height (p = 0.01), and a reduced macular choroidal thickness (p = 0.02), which were associated with the risk of serous retinal detachment. No statistically significant differences in best-corrected visual acuity (BCVA) were observed between the study and control groups. Serous retinal detachment always occurred at the bisected retinal pigment epithelium of the macula corresponding to the upper edge of the staphyloma, and was characterised by multiple hyperfluorescent granular patches on fluorescein angiography. CONCLUSIONS: A higher macular bend height and a reduced macular choroidal thickness may be important factors in the development of serous retinal detachment in patients with inferior posterior staphyloma.

Fundus flavimaculatus. Presentación de caso / Fundus flavimaculatus. Case presentation

RESUMEN Introducción: La Enfermedad de Stargardt, o fundus flavimaculatus es la distrofia macular juvenil más frecuente, responsable hasta 7 % de las distrofias maculares. Pueden ser difíciles de abordar por diversos motivos. El diagnóstico diferencial a veces es difícil, y varias de estas enfermedades producen ceguera legal a una edad relativamente joven. Objetivo: Describir el proceso diagnóstico de una entidad poco común con forma de presentación infrecuente. Presentación de caso: Se presenta el caso de una paciente de 21 años de edad, de raza blanca, con el diagnóstico de Enfermedad de Stargardt con fundus flavimaculatus. El diagnóstico se realizó teniendo en consideración los antecedentes patológicos personales, el examen físico mediante la oftalmoscopía directa e indirecta, la agudeza visual sin y con corrección, test de visión al color, angiografía fluoresceínica, tomografía de coherencia óptica (OCT) y electroretinograma. Se realizó una investigación de dicho tema por lo poco frecuente que resultan estas dos variantes de una misma enfermedad en la primera década de la vida. Conclusiones: La mayoría de las distrofias retinianas tiene desde el punto de vista clínico sus semejanzas, en cambio su evolución y pronóstico pueden ser diferentes.

ABSTRACT Introduction: Stargardt´s Disease or fundus flavimaculatus is the most frequent juvenile macular dystrophy that is responsible for 7 % of macular dystrophies. They can be difficult to address because of several reasons. The differential diagnosis is sometimes difficult to make and some of these diseases can cause legal blindness at a relatively young age. Objective: To describe the diagnostic process of an unusual entity with an infrequent form of presentation. Case presentation: We present a case of a 21-year-old white female patient with the diagnosis of Stargardt´s Disease with fundus flavimaculatus. The diagnosis was made taking into account personal pathological antecedents, the physical examination by direct and indirect ophthalmoscopy, assessment of visual acuity with and without correction, color vision test, fluorescein angiography, optical coherence tomography (OCT), and electroretinogram. Research on the topic was carried out because of the unusual appearance of these two variants of the same disease in the first decade of life. Conclusions: The majority of retinal dystrophies are similar from the clinical point of view; however, their evolution and prognosis can be different.

Vasculitis retinal / Retinal vasculitis

La vasculitis retinal es una enfermedad inflamatoria que amenaza la visión y afecta los vasos retinales (capilares, venas y arterias). Puede ocurrir como una condición idiopática o como complicación de enfermedades infecciosas y neoplásicas o en asociación con enfermedades sistémicas inflamatorias. Sus manifestaciones clínicas típicas incluyen revestimiento perivascular, envainamiento, filltración vascular y oclusión. Puede estar asociada con signos de isquemia retinal (puntos algodonosos y hemorragias intraretinales). Es clasificada en diferentes estadíos: inflamación, isquemia, neovascularización y complicaciones. En su diagnóstico es importante la biomicroscopia, la oftalmoscopia del segmento posterior y la prueba de angiografía fluoresceínica. Se presenta un paciente de 30 años con buena historia de salud anterior. El paciente comenzó con enrojecimiento del ojo izquierdo y la observación de flotadores en ambos ojos. Fue examinado y los signos clínicos fueron descritos en el examen oftalmológico. El examen del fondo de ojo con lente de 90 dioptrias y el oftalmoscopio binocular indirecto fue realizado para un cuidadoso examen. La retinografía del fondo y las imágenes del test de angiografía y otros estudios complementarios indicados permitieron conocer que presentaba una vasculopatía obliterativa retinal ideopática (Enfermedad de Eales), y el diagnóstico diferencial fue discutido. El tratamiento indicado fue la fotocoagulación con láser y evaluar la indicación de los estudios bioquímicos del cultivo del vítreo, por antígenos de leucocito humano, factor de crecimiento endotelial vascular e interleukinas que han sido observados en este examen(AU)

Retinal vasculitis is an inflammatory disease that threatens vision and affects retinal vessels (capillaries, veins and arteries). It may occur as an isolated idiopathic condition and as a complication of infective or neoplastic disorders, in association with systemic inflammatory diseases. Typical clinical manifestations including perivascular sheathing or cuffing, vascular leakage and occlusion. It may be associated with signs of retinal ischemia (cotton-wool spots and intra-retinal hemorrhage). It is classified into different stages: lnflamation, ischemia, neovascularization and complications. In the diagnosis, biomicroscopy and ophtalmoscopic of the posterior segment and fluorescein angiography test are important. A case report is presented of a 30-year-old male patient with a history of good health. In October 2015 the patient had started out with reddening of his left eye and the viewing of floaters with both eyes. Funduscopy was performed with a 90-dioptric lens and a binocular indirect ophthalmoscope. Fundus retinography, angiographic imaging and other complementary studies revealed an idiopathic obliterative retinal vasculopathy (Eales disease). The treatment indicated was photocoagulation, as well as a recommendation to evaluate the biochemical studies of the vitreous culture, since the test had found human leukocyte antigens, vascular endothelial growth factor and interleukins(AU)

Vasculitis retinal / Retinal vasculitis

La vasculitis retinal es una enfermedad inflamatoria que amenaza la visión y afecta los vasos retinales (capilares, venas y arterias). Puede ocurrir como una condición idiopática o como complicación de enfermedades infecciosas y neoplásicas o en asociación con enfermedades sistémicas inflamatorias. Sus manifestaciones clínicas típicas incluyen revestimiento perivascular, envainamiento, filltración vascular y oclusión. Puede estar asociada con signos de isquemia retinal (puntos algodonosos y hemorragias intraretinales). Es clasificada en diferentes estadíos: inflamación, isquemia, neovascularización y complicaciones. En su diagnóstico es importante la biomicroscopia, la oftalmoscopia del segmento posterior y la prueba de angiografía fluoresceínica. Se presenta un paciente de 30 años con buena historia de salud anterior. El paciente comenzó con enrojecimiento del ojo izquierdo y la observación de flotadores en ambos ojos. Fue examinado y los signos clínicos fueron descritos en el examen oftalmológico. El examen del fondo de ojo con lente de 90 dioptrias y el oftalmoscopio binocular indirecto fue realizado para un cuidadoso examen. La retinografía del fondo y las imágenes del test de angiografía y otros estudios complementarios indicados permitieron conocer que presentaba una vasculopatía obliterativa retinal ideopática (Enfermedad de Eales), y el diagnóstico diferencial fue discutido. El tratamiento indicado fue la fotocoagulación con láser y evaluar la indicación de los estudios bioquímicos del cultivo del vítreo, por antígenos de leucocito humano, factor de crecimiento endotelial vascular e interleukinas que han sido observados en este examen(AU)

Retinal vasculitis is an inflammatory disease that threatens vision and affects retinal vessels (capillaries, veins and arteries). It may occur as an isolated idiopathic condition and as a complication of infective or neoplastic disorders, in association with systemic inflammatory diseases. Typical clinical manifestations including perivascular sheathing or cuffing, vascular leakage and occlusion. It may be associated with signs of retinal ischemia (cotton-wool spots and intra-retinal hemorrhage). It is classified into different stages: lnflamation, ischemia, neovascularization and complications. In the diagnosis, biomicroscopy and ophtalmoscopic of the posterior segment and fluorescein angiography test are important. A case report is presented of a 30-year-old male patient with a history of good health. In October 2015 the patient had started out with reddening of his left eye and the viewing of floaters with both eyes. Funduscopy was performed with a 90-dioptric lens and a binocular indirect ophthalmoscope. Fundus retinography, angiographic imaging and other complementary studies revealed an idiopathic obliterative retinal vasculopathy (Eales disease). The treatment indicated was photocoagulation, as well as a recommendation to evaluate the biochemical studies of the vitreous culture, since the test had found human leukocyte antigens, vascular endothelial growth factor and interleukins(AU)

Symmetry of peripheral retinal nonperfusion in diabetic retinopathy by ischemic index.

PURPOSE: Diabetic retinopathy is the leading cause of blindness among working-age adults in most developed countries. It affects eyes bilaterally and is generally believed to be symmetrical, yet there are few studies evaluating the symmetry of diabetic retinopathy. The purpose of the present study was to evaluate the symmetry of the amount of peripheral retinal ischemia in patients with diabetic retinopathy. METHODS: Ultra-widefield fluorescein angiography images were obtained on both eyes of 54 subjects, mean age 56.4 years, from an urban eye clinic. A single, high quality image from the arteriovenous phase of the angiogram of each eye was selected for analysis. The total area of gradable fundus and area of nonperfusion seen in the arteriovenous phase of the ultra-widefield fluorescein angiogram were determined. An ischemic index (ISI) was calculated by dividing the non-perfused retinal area by the total retinal area and multiplying by 100. RESULTS: The mean ISI OD was 11.27, mean ISI OS was 11.64. The mean absolute value (±SD) of ISI difference between OD and OS was 4.46±6.09. A difference in ISI of 10% or less was found in 92.6% of subjects. A statistically significant correlation was found in the ISI between right and left eyes (rs=0.80, p<0.0001) and there was no statistically significant difference in ISI between the right and left eyes (p=0.85). CONCLUSION: Asymmetrical retinopathy in diabetic patients is uncommon and additional pathological processes should be considered in the presence of asymmetric DR.

Purtscher-like retinopathy preceding acute renal failure. / Retinopatía Purtscher-like previa a fallo renal agudo.

CASE REPORT: The case is reported of a 61 year-old woman with Purtscher-like retinopathy associated with acute renal failure. Ophthalmic examination, fluorescein-angiography, and optical coherence tomography were consistent with Purtscher-like retinopathy. Ophthalmic symptoms and signs preceded renal failure. Pancreatitis and other systemic diseases were ruled out. The patient developed a neovascular glaucoma. DISCUSSION: Purtscher-like retinopathy rarely precedes the associated systemic illness. Early diagnosis based on ophthalmic symptoms may help in the recognition and treatment of the disease, and prevent later complications.

Clinical, fundoscopic, tomographic and angiographic characteristics of dome shaped macula classified by bulge height. / Estudio de las características clínicas, fundoscópicas, tomográficas y angiográficas de la mácula en domo según la altura de protrusión macular.

OBJECTIVE: To classify dome shaped macula cases by their bulge height (BH). To analyse the characteristics associated with the groups formed by this classification. METHODS: Observational, descriptive and cross-sectional study on 15 selected eyes with dome shaped macula and high myopia. Using Caillaux method and optical coherence tomography images, 3groups were determined by their BH: low (50-350 µ), medium (351-650 µ), and high (>650 µ), and a study of visual acuity, axial length, presence of subfoveal serous detachment, and images by fluorescein angiography and optic coherence tomography, as main variables. The confidence interval was 95%. RESULTS: By using the chi-squared test, the study showed that a BH higher than 400 µ was associated with lower visual acuity, presence of subfoveal serous detachment, and greater atrophy of the retinal pigment epithelium measured by disc diameters (P<.05). CONCLUSIONS: The medium and high BH showed a positive correlation with the presence of foveal serous detachment and a lower visual acuity.

Vasculitis Oblioterativa Idiopática. Reporte de tres casos / Idiopathic obliterative retinal vasculitis. Three cases report

Se presentan tres casos de mujeres jóvenes que presentaron perdida de agudeza visual sin otros síntomas asociados, al examen físico se encontraron signos de vasculitis obliterativa de la retina. Se realizaron estudios complementarios tanto oftalmológicos como sistémicos, pero no se encontró ningún hallazgo sugestivo de una patología primaria como causa de la vasculitis. Se les diagnosticó entonces vasculitis obliterativa idiopática de la retina. Es escasa la información que existe en la literatura sobre esta patología, por lo cual el diagnóstico final generalmente se hace de forma tardía, retrasando también un tratamiento oportuno.

This article presents three cases of young women who presented visual acuity loss without other symptoms, the ophthalmologic exam showed evidence of obliterative vasculitis. Complementary ocular and systemic exams were made but there was no fi nding suggesting a primary pathology as the cause of the vasculitis. Thus, they were diagnosed with idiopathic obliterative retinal vasculitis. There is scarce information about this entity in the medical literature.

Hallazgos en angiografía por tomografía de coherencia óptica en un paciente con retinopatía por anemia de células falciformes. Reporte de caso / Findings with optical coherence tomography angiography in a patient with sickle cell retinopathy: a case report

Objetivo: Reportar el caso clínico de un paciente con diagnostico de retinopatía por anemia de células falciformes utilizando la angiografía por tomografía de coherencia óptica. Diseño: Reporte de caso. Método: Se reporta el caso de un paciente masculino asintomático con antecedente de anemia de células falciformes con hemoglobina tipo SS. Resultado: La angiografía por tomografía de coherencia óptica identificó cambios estructurales y zonas de isquemia en la macula de un paciente asintomático no identificados en la angiografía fluoresceinica asociado a adelgazamiento de las capas retinianas externas. Conclusión: El presente reporte de caso demuestra la ventaja que posee la angiografía por tomografía de coherencia óptica sobre la angiografía fluoresceinica para identificar cambios compatibles con vasculopatía isquémica a nivel del plexo vascular profundo en la macula de en un paciente con manifestaciones tempranas de retinopatía por anemia de células en la periferia. Evidencia que las alteraciones vasculares podrían causar adelgazamiento de las capas retinianas externas.

Objective: To report a case of sickle cell retinopathy using optical coherence tomography angiography. Design: Case Report. Methods: Case report of an asymptomatic male patient with type SS sickle cell anemia. Results: Optical coherence angiography identified structural changes and nonperfusion in the macula of an asymptomatic patient that were not identified with fluorescein angiography associated to outer layer retinal thinning. Conclusion: The present report demonstrates the advantage of optical coherence tomography angiography over fluorescein angiography to identify changes compatible with ischemic vasculopathy in the deep capillary plexus of the macula of patient with early signs of sickle cell retinopathy at the periphery. It provides evidence that the ischemic vascular alterations aff ect the deep capillary plexus and could cause outer retinal thinning.

The effect of the acceleration/deceleration trauma in angioid streaks: A pathogenic hypothesis. / Efecto del traumatismo por aceleración/desaceleración en estrías angioides: hipótesis patogénica.

CASE REPORT: A 59-year-old male with acceleration/deceleration cranial trauma (ADT), caused by a car accident. After one month, he presented with loss of visual acuity in the right eye. A fluorescein angiography test was performed and it detected centrifugal hyperfluorescent lines from the optic nerve head, a characteristic compatible with the diagnosis of angioid streaks. The loss of visual acuity was demonstrated by the discovery of a juxtafoveal choroidal neovascular membrane (CNV). CONCLUSION: ADT can cause hyper-extension of the eyeball in its equator line, producing the rupture of fragile structures such as the Bruch membrane (MB) in patients with angioid streaks and the subsequent formation of CNV.

Coriorretinopatía serosa central en la Clínica Oftalmológica de Cartagena (Colombia) / Central serous chorioretinopathy at Clínica Oftalmológica de Cartagena (Colombia)

Objetivos: Determinar el comportamiento de la coriorretinopatía serosa central (CSC) en los pacientes que asistieron a consulta a la clínica Oftalmológica de Cartagena en el periodo comprendido de julio del 2013 a julio de 2014. Diseño del estudio: Estudio observacional-descriptivo de tipo transversal. Métodos: Se revisaron las historias clínicas y los reportes de las ayudas diagnosticas Tomografía Óptica Coherente (OCT) y Angiografía Fluoresceínica (AF) de los pacientes diagnosticados con CSC en el periodo de Julio de 2013 a Julio de 2014 en la Clínica Oftalmológica de Cartagena. Resultados: 42 pacientes que cumplieron con todos los criterios; 9 pacientes diagnosticados con AF, 10 pacientes con OCT y 23 con diagnóstico confirmado por ambas ayudas diagnósticas. La condición es más frecuente en el sexo masculino, en edades entre los 30 y 39 años, casados con estudios bachilleres completos y en la raza negra. Según el test de ansiedad aplicado, en la muestra de pacientes no se encontró relación entre la ansiedad y la aparición de CSC. Conclusiones: El comportamiento de la CSC en la Clínica Oftalmológica de Cartagena fue similar al reportado por la literatura médica. Se recomienda realizar más estudios en los que se evalúe con mayor enfoque la asociación de la CSC y el nivel de ansiedad.

Objective: Determine the behavior of the central serous chorioretinopathy in patients seen at Clínica Oftalmológica de Cartagena in the period of July 2013 to July 2014. Design: Descriptive observational crosssectional study. Methods: Revision of medical records and reports of diagnostic exams (OCT and FA) of patients diagnosed with CSC in the period from July 2013 to July 2014. Results: 42 patients who met all the criteria; 9 patients with FA, 10 patients with OCT and 23 with a diagnosis confi rmed by both methods. The condition was more common in males, aged between 30 and 39 years old, married with complete high school studies, and in blacks. According to the test anxiety applied in the sample there was no relationship between anxiety and the appearance of CSC. Conclusions: Th e trend of the CSC at Clínica Oftalmológica de Cartagena was similar to that reported in medical literature. We recommend further studies that evaluated the association with major focus of the CSC and the level of anxiety.

Confirmación diagnóstica y frecuencia de patrón angiográfico de coroidoretinopatía serosa central en Bogotá (Colombia) / Diagnostic confirmation and angiography pattern frequency of Central Serous Coroidoretinopathy in Bogotá (Colombia)

Objetivo: El propósito de este estudio es determinar la cifra de confirmación diagnóstica de coroidoretinopatía serosa central durante Junio 2012 a Noviembre 2013, describir la frecuencia de los diferentes patrones angiográficos y características como sexo, ocupación, edad y antecedentes médicos más frecuentes. Materiales y Métodos: Se realizó un estudio observacional descriptivo. Con la revisión de la historia de ingreso y reporte del resultado de 71 pacientes que asistieron al centro de diagnóstico Angiografía Digital SAS, de Bogotá (Colombia) para la realización del examen retinal angiografía fluoresceínica en ambos ojos con criterio de inclusión de impresión diagnóstica clínica de Coroidoretinopatía Serosa Central. Se utilizó el programa SPSS Versión 21, para realizar el análisis estadístico de los datos obtenidos. Resultados: Se encontró que en 74.3% (52 pacientes) se confirmó la enfermedad, en 25,7% (18 pacientes) se descartó la presencia de Coroidoretinopatía Serosa Central. Se excluyó 1 paciente por datos incompletos. El patrón angiográfico más frecuente fue de puntos expansivos 80.8% (42 pacientes), seguido en frecuencia por el patrón en humo de chimenea 15.4% (8 pacientes) y por último el patrón difuso 3.8% (2 pacientes). Estos resultados se presentaron con mayor frecuencia en hombres que en mujeres, las ocupaciones más frecuentes fueron independiente-comerciante y profesionales en salud, el rango de edad más frecuente fue de 41 a 45 años y la mayoría de los pacientes no presentaron antecedentes médicos. Conclusión: En nuestro medio demográfico de Bogotá (Colombia) se confirma la impresión diagnóstica clínica de Coroidoretinopatía serosa Central en 74,3% con el examen de Angiografía fluoresceínica de retina para un total de 70 pacientes que consultaron en un periodo de 16 meses. El patrón angiográfico más frecuente es de puntos expansivos 80,8%, a pesar que el patrón angiográfico patognomónico y más conocido por la sociedad médica oftalmológica es el de humo de chimenea.

Objective: The purpose of this study was to determine the diagnostic confirmation of central serous chorioretinopathy during June 2012 to November 2013, the frequency of different angiographic patterns and demographic characteristics such as gender, occupation, age and medical history. Materials and Methods: A descriptive study was conducted. With the revision of the clinical record and reports of 71 patients who attended the diagnostic center Angiografía Digital SAS, Bogota (Colombia) for the realization of retinal fluorescein angiography examination in both eyes that met the inclusion criteria of clinical diagnostic impression of Central serous choroidopathy. SPSS version 21 program was used to perform the statistical analysis of the data obtained. Results: In this setting the confi rmation of CSC with angiography was 74.3% (52 patients) and in 25.7% (18 patients) the presence of Central Serous Chorioretinopathy was discarded. One patient was excluded because of incomplete data. The most common angiographic pattern was expansive points 80.8% (42 patients), followed in frequency by the smoke-stack pattern in 15.4% (8 patients) and fi nally the diffuse pattern 3.8% (2 patients).CSC occurred more often in men than in women, the most common occupations were independent and health-related occupations, the most common age range was 41-45 years and there was no frequent report of medical problems. Conclusion: In our geographic setting the clinical diagnosis of central serous chorioretinopathy was confi rmed in 74,3% of the cases with fl uorescein angiography for 70 patients seen in a lapse of time of 16 months. The most frequent angiography pattern was expansive dots in contrary to the most known pattern of smoke-stack pattern.

Retinitis y fiebre por chikunguña: reporte de caso / Chikunguya fever and retinitis. Case report

Contexto: La enfermedad por Chikunguña es una infección viral, que ha sido un problema importante de salud en el mundo, recientemente asociado con manifestaciones oculares. Actualmente, no existe ningún tratamiento o vacuna para la fiebre por Chikunguña. Esta revisión se concentra en las manifestaciones de la retina de esta enfermedad viral a través de un caso clínico. La importancia de publicar este reporte es facilitar un diagnóstico precoz, basados en la poca evidencia que existe y así no sea una enfermedad subdiagnosticada. Presentación del caso: Paciente de sexo masculino de 46 años de edad, con antecedentes de trastorno bipolar tipo 2 quien experimenta fiebre, artralgias, rash cutáneo severo y edema en miembros inferiores, durante el brote de fiebre por Chikunguña, asociado con manifestaciones visuales: disminución de la agudeza visual, visión borrosa y escotoma en su ojo izquierdo. La Tomografía de coherencia óptica y la Angiografía fluoresceínica evidencian retinitis, y desprendimiento de vítreo posterior. Conclusiones: Los cambios oculares asociados con Chikunguña deben ser considerados en las regiones epidémicas. Existe la necesidad de dar importancia clínica, no sólo por el compromiso de esta enfermedad viral sistémica, sino también la presentación de manifestaciones oculares, y disminuir los casos de morbilidad y mortalidad

Background: Chikungunya is a viral infection that has been a major health world problem, recently associated with ocular manifestations. Currently, there is no treatment or vaccine for Chikungunya fever. In this work, we focus on the retinal manifestations of this viral disease, reporting a single clinical case. The importance of publish this report is to facilitate on early diagnosis, based on the lack of evidence and misdiagnosed. Case presentation: A 46 years old male, with history of bipolar II disorder, experienced fever, joint pain, severe rash and lower limb edema, during the outbreak of Chikungunya fever, associated with visual manifestations: decrease visual acuity, blurred vision and scotoma on his left eye; coherence tomography and fl uorescein angiography supports retinitis, and posterior vitreous detachment. Conclusions: Chikungunya associated ocular changes should be considered in epidemic regions. It is necessary to considered not only systemic manifestations but ocular, to reduce morbidity and mortality cases.

Acute lymphoblastic leukemia presenting with bilateral serous macular detachment / Leucemia linfoblástica aguda com descolamento macular seroso bilateral

ABSTRACT Acute lymphoblastic leukemia is a malignant hematopoietic neoplasia, which is rare in adults. Although ocular fundus alterations may be commonly observed in the course of the disease, such alterations are rarely the presenting signs of the disease. Here we describe the case of a patient with painless and progressive loss of visual acuity (right eye, 2/10; left eye, 3/10) developing over two weeks, accompanied by fever and cervical lymphadenopathy. Fundus examination showed bilateral macular serous detachment, which was confirmed by optical coherence tomography. Fluorescein angiography revealed hyperfluorescent pinpoints in the posterior poles. The limits of the macular detachment were revealed in the late phase of the angiogram. The results of blood count analysis triggered a thorough, systematic patient examination. The diagnosis of acute lymphoblastic leukemia B (CD10+) was established, and intensive systemic chemotherapy was immediately initiated. One year after the diagnosis, the patient remains in complete remission without any ophthalmologic alterations.

RESUMO A leucemia linfoblástica aguda é uma neoplasia maligna das células hematopoiéticas, incomum em adultos. Apesar da maioria dos casos apresentar alterações no fundo ocular no decurso da doença, estas são raramente forma de apresentação da mesma. Descreve-se o caso de uma doente com diminuição progressiva e indolor da acuidade visual (OD 2/10 e OE 3/10), que apresentava concomitantemente febre e adenopatias cervicais, com duas semanas de evolução. À oftalmoscopia apresentava descolamento seroso macular bilateral, confirmado por tomografia de coerência ótica. A angiografia fluoresceínica revelou pequenas lesões hiperfluorescentes tipo pinpoints no polo posterior. Nos tempos médios e tardios do exame adivinham-se os limites da bolsa do descolamento do neuroepitélio. As alterações encontradas no hemograma suscitaram um estudo sistêmico extenso. O diagnóstico de leucemia linfoblástica aguda B (CD10+) foi efetuado, iniciando-se, de imediato, quimioterapia sistêmica intensiva. Um ano após o diagnóstico a doente continua em remissão e sem alterações oftalmológicas de novo.

[Congenital retinal macrovessel: an atypical presentation with low vision and macular thickening]. / Macrovaso congénito retiniano: presentación atípica con baja visión y engrosamiento macular.

CASE REPORT: We report a case of a 35 year old male patient with no medical history, who experienced decreased vision in his left eye that he noticed by chance. After a complete ophthalmic examination, he was diagnosed with congenital retinal macrovessel with macular thickening. DISCUSSION: Congenital retinal macrovessels are rare vascular anomalies, in which the diagnosis is usually incidental as their visual impact is minimal. In the rare cases where there is a significant visual impairment, this is due to macular hemorrhages, foveal cysts, serous macular detachment, or the course of the vessel itself through the foveal avascular zone.

Acute eclipse retinopathy: a small case series.

We present four young patients with acute severe solar retinopathy after observation of the total eclipse on January 4, 2011 without appropriate eye protection. Funduscopic findings were accompanied by optical coherence tomography (OCT) investigation of the macula. All our patients were young (range 14-29 years). In three of the four patients we have been able to repeat OCT evaluation revealing that the retinal changes were reversible, but delineating mild pathology in the retinal pigment epithelium and photoreceptors. Best-corrected visual acuity in the fourth case was 6/24. In addition, macular edema, which has been previously described in literature, could not be demonstrated by OCT. In the two cases we performed an early fluorescein angiogram, no pathology was seen.

Sildenafil citrate on retrobulbar and retinal circulation of rabbits / Citrato de sildenafil sobre a circulação retrobulbar e retiniana de coelhos

The effects of sildenafil on retrobulbar and retinal circulation were studied in 18 adult male, albino, homozygous rabbits, of the New Zealand White breed, randomly divided into 3 groups of 6 animals, for drug treatment at a dose of 3.5mg kg-1 every 24 hours, for 7, 15 and 30 days. Nine animals used for control were treated with saline solution at 0.9%. It was evaluated intraocular pressure (IOP), mean arterial pressure (MAP), ocular perfusion pressure (PPO), B-mode ultrasonography and fluorescein angiography before and at the end of treatments. A slight decrease in results of IOP, MAP and PPO after treatment with sildenafil was evident, however, there was no statistical significance. It was observed significant increased diameter of the ophthalmic artery after 7 and 30 days of treatment and decreased mean arterial pressure after 7, 15 and 30 days of treatment, with no statistical difference. On fluorescein angiography, it was observed that the arterial, arteriovenous and venous stages initiated more rapidly in animals after treatment, with significant difference on the arteriovenous stage at the 7th and 15th days. It was possible to admit that the sildenafil citrate improves blood circulation in the retina of rabbits, by increasing the speed of blood flow and decreasing the perfusion pressure.

Os efeitos do sildenafil sobre a circulação retrobulbar e a retiniana foram estudados em 18 coelhos machos adultos, albinos, homozigotos, da raça Nova Zelândia Branco, distribuídos aleatoriamente em 3 grupos de 6 animais, para tratamento com o fármaco na dose de 3,5mg kg-1 a cada 24 horas, por 7, 15 e 30 dias. Nove animais foram utilizados para controle, tratados com solução fisiológica a 0.9%. Foram avaliadas a pressão intraocular (PIO), a pressão arterial média (PAM) e a pressão de perfusão ocular (PPO), ultrassonografia em modo-B e a angiografia fluoresceínica, antes e ao término dos tratamentos. Evidenciou-se discreta diminuição nos resultados da PIO, da PAM e da PPO após tratamento com sildenafil, entretanto não houve significância estatística. Observou-se aumento significativo do diâmetro da artéria oftálmica após 7 e 30 dias de tratamento e diminuição da pressão arterial média após 7, 15 e 30 dias de tratamento, sem diferença estatística. À angiografia fluoresceínica, observou-se que as fases arterial, artério-venosa e venosa iniciaram-se mais rapidamente nos animais após o tratamento, com diferença significativa na fase artério-venosa ao 7o e 15o dias. Foi possível admitir que o citrato de sildenafil melhora a circulação de sangue na retina de coelhos, através do aumento da velocidade do fluxo de sangue e diminuição da pressão de perfusão.

[Intravitreal ranibizumab in the treatment of subretinal neovascularization in a case of punctate inner choroidopathy]. / Ranibizumab intravítreo en el tratamiento de membrana neovascular subretiniana en un caso de coroidopatía puntata interna.

CASE REPORT: We report the case of a 28-year old woman suffering loss of visual acuity in her left eye, who presented an image suggestive of a subretinal neovascular membrane in her left eye, and bilateral retinal lesions compatible with punctate inner choroidopathy (PIC). She was treated with intravitreal ranibizumab obtaining excellent results. DISCUSSION: The differential diagnosis must be made between PIC and the rest of "white dot syndromes" and the presumed ocular histoplasmosis syndrome (POHS). Antiangiogenic drugs may be a good alternative for the treatment of such diseases when they develop a subretinal neovascular membrane.

[Natural history of an optic disc macroaneurysm]. / Historia natural del macroaneurisma arterial de nervio óptico.

CASE REPORT: A 75-year old man with reduced vision in his left eye (0.05) presented with hypertensive retinopathy, retinal haemorrhages and cotton wool spots in the papillomacular bundle, as well as macular oedema. Fluorescein angiography showed a saccular hyperfluorescent lesion corresponding to arterial macroaneurysm on the optic disc, with the optical coherence tomography demonstrating macular oedema. At 2 months follow-up, vision had improved to 0.7 with spontaneous closure of the macroaneurysm and resolution of the macular oedema. DISCUSSION: Arterial macroaneurysms on the optic disc are unusual and are difficult to diagnose clinically. There is no safe and effective treatment, and our case, as the few single cases reported, showed that they can spontaneously close and enable visual function to recover.

Bevacizumab subconjuntival y su efectividad en la regresión de la neovascularización corneal evaluado mediante angiografía fluoresceínica de segmento anterior / Subconjunctival bevacizumab effectiveness in corneal neovascularization regression evaluated with anterior segment fluorescein angiography

Objetivo: evaluar objetivamente mediante el uso de angiografía de segmento anterior la reducción del grado de neovascularización corneal con la aplicación de bevacizumab subconjuntival. Diseño: serie de casos con intervención. Metodología: nueve ojos con neovascularización corneal estromal secundaria a diferentes condiciones se sometieron a la realización de angiografía fluoresceínica de segmento anterior; cuatro semanas después se aplicaron 3 dosis de bevacizumab subconjuntival limbar de 2,5 mg/0,1cc cada una sobre el cuadrante comprometido con un intervalo de un mes entre cada aplicación. Cuatro semanas después se realizó una nueva angiografía. Las fotos pre-aplicación y post aplicación fueron analizadas por 3 evaluadores. Se definió como mejoría si había una mejoría ≥30%, basado en una escala de mejoría de 0 a 10. Resultados: se encontró un alto rango de variabilidad en la regresión de la neovascularización corneal (entre 3% y 92%) con un promedio de mejoría del 41% y posibilidad de falla de 44,4% independientemente de su etiología. Se obtuvieron pobres resultados en presencia de cuerpos extraños en córnea (segmentos intraestromales o suturas corneales) con una mejoría entre 3% y 7%. Pacientes sin cuerpo extraño en córnea obtuvieron una mejoría promedio de la neovascuarización corneal del 70%. No hubo efectos secundarios sistémicos o locales. Conclusion: el uso del bevacizumab subconjuntival como terapia antiangiogénica es una alternativa con buena tasa de efectividad en pacientes con neovascularización corneal sin presencia de cuerpos extraños corneales.

Purpose: to assess corneal stromal neovascularization accurately and its improvement by using anterior segment fluorescein angiography imaging after subconjunctival bevacizumab injection. Design: interventional case series. Methodology: an anterior segment fluorescein angiography was performed in nine eyes with stromal neovascularization secondary to different etiologies. Patients underwent subconjunctival bevacizumab injections, each one receiving three injections containing 2,5mg/0,1ml bevacizumab each, at monthly intervals. Four weeks after the last injection was applied, a new anterior segment fluorescein angiography was done; pre and post-treatment angiographies were analyzed by three ophthalmologists. A favorable outcome was defined as an improvement of 30% in corneal neovascularization based on a previously established score from 0 to 10. Results: findings were variable, with corneal neovascularization improving between 3% and 92% (mean improvement 41%) for all eyes included, and a 44,4% chance of failure. Poor results were obtained from eyes that had some type of intracorneal foreign body such as intracorneal ring segments (ICRS) and corneal sutures with an improvement range from 3% to 7% whereas eyes with no foreign bodies had a mean reduction in corneal neovascularization of 70%. No side effects were reported. Conclusions: subconjunctival Bevacizumab use as antiangiogenic therapy is an alternative with a high success rate in patients without intracorneal foreign bodies, although it is clearly not as effective in patients with foreing body-induced neovascularization.