Cavitación coroidea asociada a coloboma macular. Estudio multimodal. Imagen en face / Choroid cavitation associated with macular coloboma. Multimodal study. Image en face

La cavitación intracoroidea es un hallazgo identificado con OCT descrito inicialmente en pacientes miopes, pero también aparece en pacientes no miopes. Puede presentarse tanto en el área peripapilar como en el polo posterior. El coloboma macular es un defecto del desarrollo embrionario del polo posterior, y en la OCT estructural es imprescindible la ausencia del epitelio pigmentario de la retina y de los vasos coroideos para su diagnóstico. Este caso presenta la cavitación intracoroidea circunscribiendo el coloboma macular, en ausencia de membrana intercalar. La imagen en face permite valorar la relación entre ambas estructuras, así como la magnitud de las mismas. (AU)

Intrachoroidal cavitation is a finding identified with OCT initially described in myopic patients, it also appears in non-myopic patients. It can occur in both the peripapillary area and the posterior pole. Macular coloboma is a defect of embryonic development of the posterior pole, in structural OCT the absence of the retinal pigment epithelium and choroidal vessels is essential. In this case, intrachoroidal cavitation circumscribes the macular coloboma, in the absence of an intercalary membrane. The face image allows us to assess the relationship between the two structures as well as their magnitude. (AU)

Choroid cavitation associated with macular coloboma. Multimodal study. Image en face.

Intrachoroidal cavitation is a finding identified with OCT initially described in myopic patients, it also appears in non-myopic patients. It can occur in both the peripapillary area and the posterior pole. Macular coloboma is a defect of embryonic development of the posterior pole, in structural OCT the absence of the retinal pigment epithelium and choroidal vessels is essential. In this case, intrachoroidal cavitation circumscribes the macular coloboma, in the absence of an intercalary membrane. The en face image allows us to assess the relationship between the two structures as well as their magnitude.

Concordancia inter e intraobservador en la medida de los agujeros maculares por tomografía de coherencia óptica / Inter- and intra-observer agreement in the measurement of macular holes by optical coherence tomography

Antecedentes y objetivo El agujero macular de espesor completo (AMEC) es una lesión foveal causada por un defecto del espesor completo de la retina neurosensorial. En su diagnóstico y en la indicación de tratamiento quirúrgico se tiene en cuenta la medida del agujero según la herramienta proporcionada por la OCT. Dicha medida puede ser realizada por varios oftalmólogos a lo largo del seguimiento de un paciente. El objetivo de este estudio es averiguar si existe variabilidad intraindividual e interindividual en dichas mediciones. Material y métodos Revisión retrospectiva de imágenes de b-scans de OCT con diagnóstico de AMEC. Se realizaron mediciones del diámetro mínimo del AMEC mediante la herramienta manual disponible en el DRI-Triton (Topcon, Japón) en las escalas 1:1 y 1:2, en días diferentes, por 2 especialistas en retina y 2 residentes. Se compararon dichas mediciones para valorar la correspondencia interobservador e intraobservador Resultados Se analizan 34 imágenes. Para la variabilidad intraobservador se obtuvo un índice de correlación superior a 0,98 en todos los casos. Para la variabilidad interobservador, el coeficiente de correlación intraclase fue de 0,94 (IC del 95%, 0,91-0,97) para la escala 1:1, y de 0,94 (IC del 95%, 0.91-0,97) para la escala 1:2. Conclusiones Los valores del tamaño de los AMEC medidos por OCT son reproducibles entre oftalmólogos especialistas y residentes y son independientes de la escala de la imagen en la que se realice dicha medición (AU)

Background and objective A full-thickness macular hole (FTMH) is a foveal lesion caused by a defect in the full thickness of the neurosensory retina. Its diagnosis and the indication for surgical treatment take into account the measurement of the hole according to the tool provided by the OCT. This measurement can be performed by several ophthalmologists during the follow-up of a patient. The aim of this study is to find out whether there is intra-individual and inter-individual variability in these measurements. Material and methods Retrospective review of OCT b-scan images with a diagnosis of FTMH. Measurements of the minimum diameter of the FTMH were performed using the hand-held tool available on the DRI-Triton (Topcon, Japan) at 1:1 and 1:2 scales, on different days, by 2retina specialists and 2residents. These measurements were compared to assess inter-observer and intra-observer correspondence. Results Thirty-four images were analysed. For intra-observer variability, a correlation index higher than 0.98 was obtained in all cases. For inter-observer variability, the intra-class correlation coefficient was 0.94 (95% CI: 0.91-0.97) for the 1:1 scale, and 0.94 (95% CI: 0.91-0.97) for the 1:2 scale. Conclusions OCT-measured AMEC size values are reproducible between ophthalmic specialists and residents and are independent of the imaging scale at which the measurement is made (AU)

Inter- and intra-observer agreement in the measurement of macular holes by optical coherence tomography.

BACKGROUND AND OBJECTIVE: A full-thickness macular hole ("FTMH") is a foveal lesion caused by a defect in the full thickness of the neurosensory retina. Its diagnosis and the indication for surgical treatment take into account the measurement of the hole according to the tool provided by the OCT. This measurement can be performed by several ophthalmologists during the follow-up of a patient. The aim of this study is to find out whether there is intra-individual and inter-individual variability in these measurements. MATERIAL AND METHODS: Retrospective review of OCT b-scan images with a diagnosis of FTMH. Measurements of the minimum diameter of the FTMH were performed using the hand-held tool available on the DRI-Triton (Topcon, Japan) at 1:1 and 1:2 scales, on different days, by 2 retina specialists and 2 residents. These measurements were compared to assess inter-observer and intra-observer correspondence. RESULTS: Thirty-four images were analysed. For intra-observer variability, a correlation index higher than 0.98 was obtained in all cases. For inter-observer variability, the intra-class correlation coefficient was 0.94 (95% CI: 0.91-0.97) for the 1:1 scale, and 0.94 (95% CI: 0.91-0.97) for the 1:2 scale. CONCLUSIONS: OCT-measured AMEC size values are reproducible between ophthalmic specialists and residents and are independent of the imaging scale at which the measurement is made.

Agujero macular iatrogéno durante la inyección de perfluorocarbono líquido en una cirugía de desprendimiento de retina / Iatrogenic macular hole during liquid perfluorocarbon injection in retinal detachment surgery

Reportar la formación de agujero macular durante la inyección intravítrea de perfluorocarbono líquido en la cirugía programada de desprendimiento de retina. Caso clínico Varón de 73 años con desprendimiento de retina regmatógeno superotemporal. Durante la inyección de perfluorocarbono líquido se produce un agujero macular de espesor completo con acumulación del perfluorocarbono en el espacio subretiniano. El líquido se extrajo a través del agujero macular. La tomografía de coherencia óptica confirmó un agujero macular de espesor total en el examen postoperatorio. Un mes después se repara con técnica de colgajo invertido de membrana limitante interna con resultado funcional satisfactorio. La inyección de perflurocarbono líquido intravítreo es electiva, facilita el drenaje del fluido subretiniano en los desprendimientos de retina. Algunas complicaciones han sido asociadas a su empleo, intraoperatorias y postoperatorias. Hasta el momento no ha sido reportado ningún caso de agujero macular completo producido durante la inyección intravítrea de perfluorocarbono (AU)

To describe a macular hole development during intravitreal injection of perfluorocarbon liquid used to repair a rhegmatogenous retinal detachment. Clinical case A 73-year-old man presented with superotemporal rhegmatogenous retinal detachment. During surgery, along the perflorocarbon liquid injection, a full thickness macular developed and perfluorocarbon was accumulated in subretinal space. Perfluorocarbon liquid was then extracted through the macular hole. Postoperatively, ocular coherence tomography confirmed the existence of a full-thickness macular hole. One month later, this macular hole was successfully treated with the use of an inverted internal limiting membrane flap. Intravitreous liquid PFC injection is a resource to aid in subretinal fluid exit. A number of complications, both intra and postoperative, have been associated with the use of PFC. This is the first reported case of a complete macular hole secondary to PFC injection (AU)

Macroaneurisma arterial retiniano: estudio mediante tomografía de coherencia óptica y retinografía / Retinal arterial macroaneurysm: A study using optical coherence tomography and retinography

No disponible

Comparación entre angiografía convencional y mediante OCT en complicaciones isquémicas secundarias a vasculitis / Comparison between conventional angiography and OCT angiography in ischaemic complications secondary to vasculitis

No disponible

Retinopatía por Valsalva: estudio mediante retinografía y tomografía de coherencia óptica / Valsalva retinopathy: Study using retinography and optical coherence tomography

No disponible

Uveítis anterior aguda hipertensiva granulomatosa bilateral como efecto adverso a brimonidina tópica / Hypertensive acute granulomatous anterior uveitis as a side effect of topical brimonidine

CASO CLÍNICO: Mujer de 81 años en tratamiento con una combinación fija de timolol y brimonidina en colirio que fue diagnosticada en urgencias de uveítis anterior aguda hipertensiva granulomatosa. La paciente respondió favorablemente a la retirada del colirio sin mostrar recaída posterior. DISCUSIÓN: La uveítis por brimonidina es un efecto adverso raro, pero que debe ser conocido. Una vez se llega al diagnóstico de sospecha, el tratamiento efectivo es la retirada del colirio de brimonidina, con adición o no de corticoides tópicos para controlar la inflamación según la gravedad del cuadro. Se trata de un proceso con un pronóstico excelente

CLINICAL CASE: The case concerns an 81-year-old woman on treatment with a topical fixed combination of timolol and brimonidine who was diagnosed in the Emergency Department with acute anterior granulomatous hypertensive uveitis. The patient responded favourably to the withdrawal of the eye drops without showing any subsequent relapse. DISCUSSION: Uveitis due to brimonidine is a rare adverse effect, but it must be known. Once the diagnosis is suspected, the effective treatment is the withdrawal of brimonidine, with or without the addition of topical corticosteroids to control inflammation depending on the severity of the condition. It is a process with an excellent prognosis

Hypertensive acute granulomatous anterior uveitis as a side effect of topical brimonidine. / Uveítis anterior aguda hipertensiva granulomatosa bilateral como efecto adverso a brimonidina tópica.

CLINICAL CASE: The case concerns an 81-year-old woman on treatment with a topical fixed combination of timolol and brimonidine who was diagnosed in the Emergency Department with acute anterior granulomatous hypertensive uveitis. The patient responded favourably to the withdrawal of the eye drops without showing any subsequent relapse. DISCUSSION: Uveitis due to brimonidine is a rare adverse effect, but it must be known. Once the diagnosis is suspected, the effective treatment is the withdrawal of brimonidine, with or without the addition of topical corticosteroids to control inflammation depending on the severity of the condition. It is a process with an excellent prognosis.

Hipoplasia de nervio óptico unilateral: estudio mediante tomografía de coherencia óptica y resonancia magnética / Unilateral optic nerve hypoplasia: Optical coherence tomography and magnetic resonance imaging study

No disponible