Cámara de fondo de ojo de campo amplio utilizando una cámara macro de teléfono móvil para el tamizaje de Retinopatía Diabética

A. Navarro-Saucedo, D. Malacara-Doblado, D. Malacara-Hernández, Z. Malacara-Hernández, F. Navarro-Mendoza, D. Torres-Armenta, R. Valdivia-Hernández, R. Navarro-Saucedo, G. Trujillo-Sánchez, J. Navarro-Saucedo, J. Ramírez-López

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Información básica

Volumen

V57 - N1 / 2024 Especial: RIAO OPTILAS 2023

Referencia

51162

DOI

http://dx.doi.org/10.7149/OPA.57.1.51162

Idioma

English

Etiquetas

Cámara de fondo de ojo, Campo amplio, Celular, Tamizaje de RD

Resumen

La retinopatía diabética (RD) es la primera causa de ceguera en adultos en edad laboral (20-74 años), pero si se realiza un diagnóstico oportuno, el 80% de las complicaciones de la RD pueden prevenirse. Las cámaras de fondo de ojo (CFO) de campo amplio y basadas en celulares han mostrado resultados prometedores para la detección de RD; sin embargo, continúan los esfuerzos para mejorar estos dispositivos en cuanto a calidad de imagen, FOV, asequibilidad y accesibilidad que podrían ayudar a prevenir la ceguera mediante un diagnóstico rápido. Aquí mostramos el diseño, implementación y caracterización de un prototipo de CFO de campo amplio basada en un teléfono celular. Lo que distingue nuestro diseño es el uso de una cámara macro del celular con una lupa oftálmica de alta potencia para obtener campos amplios en una sola toma, un anillo de polarización cruzada para imágenes de fondo de ojo sin reflejos y el diseño mecánico a dos manos para mejorar la estabilidad. El prototipo presentado es seguro (Grupo 1 según ISO 15004-2), fácil de usar (FOV estático de 80°), asequible (500 USD <), portátil (de mano, 280 x 90 x 90 mm y 410 gr), y confiable (resolución espacial central de 46 lp/mm en el fondo de ojo). El prototipo representa una alternativa ideal para la detección de RD en el punto de atención y, al incorporar las herramientas apropiadas de inteligencia artificial y teleoftalmología, una mejora potencial en la prevención de la ceguera en la población diabética.

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