ABSTRACT
Objetivo: Clasificar la mácula en domo según la altura de protrusión macular (AP) y analizar las características asociadas a cada grupo. Métodos: Estudio observacional, descriptivo y transversal. Selección de 15 ojos con mácula en domo y miopía magna. Utilizando imágenes por tomografía de coherencia óptica (OCT) y el método de Caillaux, se clasificó la AP en baja (50-350 μ), media (351-650 μ) y alta (>650 μ) y se estudió la agudeza visual, longitud axial, presencia de desprendimiento seroso subfoveal y las imágenes obtenidas por angiografía fluoresceínica y OCT como variables principales. El nivel de confianza utilizado fue de 95%. Resultados: Utilizando el test de chi cuadrado, el estudio observó que una AP mayor a 400 μ se asoció con menor agudeza visual, mayor presencia de desprendimiento seroso subfoveal y mayor presencia de atrofia del epitelio pigmentario de la retina medida en diámetros de papila (p<0,05). Conclusiones: Las AP media y alta mostraron una asociación positiva con la presencia de desprendimiento seroso subfoveal y disminución de laagudeza visual (AU)
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 (AU)
Subject(s)
Humans , Retina/abnormalities , Myopia/physiopathology , Visual Acuity/physiology , Retinal Diseases/classification , Fovea Centralis/physiopathology , Cross-Sectional Studies , Retinal Pigment Epithelium/physiopathology , Tomography, Optical CoherenceABSTRACT
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.
Subject(s)
Macula Lutea/pathology , Retinal Detachment/diagnostic imaging , Adult , Atrophy , Cross-Sectional Studies , Female , Fluorescein Angiography , Humans , Macula Lutea/diagnostic imaging , Male , Middle Aged , Myopia/diagnostic imaging , Myopia/etiology , Myopia/pathology , Ophthalmoscopy , Retinal Detachment/etiology , Retinal Pigment Epithelium/pathology , Severity of Illness Index , Tomography, Optical Coherence , Visual AcuityABSTRACT
CASO CLÍNICO: Varón de 59 años, sufrió traumatismo por aceleración/desaceleración (TAD), de localización craneal, causado por accidente de tráfico; un mes después presentó pérdida de agudeza visual (AV) del ojo derecho (OD). Mediante angiografía fluoresceínica (AGF) se detectaron líneas hiperfluorescentes centrífugas desde la papila, imagen compatible con el diagnóstico de estrías angioides (EA). El hallazgo de una membrana neovascular coroidea (MNVC) yuxtafoveal justificó la pérdida de AV. CONCLUSIÓN: El TAD puede provocar la hiperextensión del globo ocular en su eje ecuatorial, y producir la rotura de estructuras frágiles como la membrana de Bruch (MB) en pacientes con EA, con la subsiguiente formación de una MNVC
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
Subject(s)
Humans , Male , Middle Aged , Angioid Streaks/physiopathology , Craniocerebral Trauma/complications , Vision Disorders/etiology , Acceleration/adverse effects , Accidents, Traffic , Choroidal Neovascularization/physiopathology , Fluorescein Angiography/methodsABSTRACT
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.
