\u00bfQu\u00e9 son las membranas pupilares persistentes?<\/h4>\n
Las membranas pupilares persistentes, tambi\u00e9n conocida como anomal\u00eda de Peter, es el resultado de una involuci\u00f3n incompleta de una red vascular que recubre el cristalino durante su formaci\u00f3n en las fases embriol\u00f3gicas y fetales. Como resultado, podemos ver peque\u00f1as fibras pigmentadas, del mismo color que el iris, que se originan en el iris y pueden terminar de tres formas diferentes. Pueden terminar en el propio iris y luego parecerse a peque\u00f1os puentes sobre el iris. En segundo lugar, pueden adherirse al interior de la c\u00f3rnea (endotelio corneal) y esto provoca opacidades blanquecinas en la c\u00f3rnea llamadas leucomas. Por \u00faltimo, tenemos las que se adhieren a la parte superficial del cristalino (c\u00e1psula anterior) y tambi\u00e9n provocan opacidades blanquecinas, que en este caso se denominan cataratas capsulares anteriores.<\/p>\n
\u00bfC\u00f3mo se diagnostican?<\/h4>\n
Para el correcto diagn\u00f3stico de las membranas pupilares persistentes, el veterinario oftalm\u00f3logo debe realizar una evaluaci\u00f3n oftalmol\u00f3gica completa del paciente y, mediante una l\u00e1mpara de hendidura (microscopio especial para evaluar el segmento anterior del ojo), determinar\u00e1 la presencia de membranas y qu\u00e9 estructuras de el ojo est\u00e1 afectando.<\/p>\n
\u00bfC\u00f3mo se tratan las membranas pupilares persistentes?<\/h4>\n
Estas membranas no tienen tratamiento como tal. Si es necesario, lo que se puede tratar es la consecuencia, si genera un problema visual importante. Las opacidades corneales, si cubren gran parte de la c\u00f3rnea, solo se pueden corregir con un trasplante de c\u00f3rnea. En el caso de las cataratas, si son m\u00faltiples o extensas, la soluci\u00f3n ser\u00eda la cirug\u00eda de cataratas con colocaci\u00f3n de lentes intraoculares.<\/p>\n
\u00bfCu\u00e1l es el pron\u00f3stico de un paciente con Membranas Pupilares Persistentes?<\/h4>\n
El pron\u00f3stico es generalmente favorable y es s\u00f3lo un hallazgo incidental. Si el paciente requiere cirug\u00eda de cataratas, el pron\u00f3stico actualmente tambi\u00e9n es bueno (ver art\u00edculo sobre cataratas). Si hay una afecci\u00f3n extensa de la c\u00f3rnea y necesita un trasplante de c\u00f3rnea, ya es una cirug\u00eda m\u00e1s compleja y el veterinario oftalm\u00f3logo debe analizar y discutir contigo las ventajas y desventajas caso por caso.<\/p>\n
Figuras:<\/h4>\n
\n
\nFig. 1 \u00danica Membrana Pupilar Persistente (MPP) de iris a iris. N\u00f3tese tambi\u00e9n opacidad en el cristalino (catarata) no asociada a la MPP.<\/figcaption><\/figure>\n<\/div><\/div>\n
\nFig. 2 M\u00faltiples MPPs y un punto peque\u00f1o de opacidad corneal.<\/figcaption><\/figure>\n<\/div><\/div>\n
\nFig. 3 M\u00faltiples MPPs y zona extensa de opacidad corneal.<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n
\n
\nFig. 4 M\u00faltiples MPPs y zona extensa de opacidad corneal vista lateral.<\/figcaption><\/figure>\n<\/div><\/div>\n
\nFig. 5 M\u00faltiples MPPs y una peque\u00f1a opacidad en la capsula anterior del cristalino (catarata capsular anterior).<\/figcaption><\/figure>\n<\/div><\/div>\n
\nFig. 6 M\u00faltiples MPPs y una gran opacidad en la capsula anterior del cristalino (catarata capsular anterior).<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u00bfQu\u00e9 son las membranas pupilares persistentes? Las membranas pupilares persistentes, tambi\u00e9n conocida como anomal\u00eda de Peter, es el resultado de una involuci\u00f3n incompleta de una red vascular que recubre el cristalino durante su formaci\u00f3n en las fases embriol\u00f3gicas y fetales. Como resultado, podemos ver peque\u00f1as fibras pigmentadas, del mismo color que el iris, que se […]\n","protected":false},"author":1,"featured_media":8885,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-8340","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria-es"],"yoast_head":"\n
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