{"id":17064,"date":"2019-12-03T00:30:36","date_gmt":"2019-12-02T23:30:36","guid":{"rendered":"http:\/\/ophtalmologue-nord.fr\/?p=17064"},"modified":"2021-02-01T15:39:26","modified_gmt":"2021-02-01T14:39:26","slug":"pterygion","status":"publish","type":"post","link":"https:\/\/vision-centrum.be\/en\/pterygion\/","title":{"rendered":"Pt\u00e9rygion"},"content":{"rendered":"
\nhttp:\/\/www.zioneye.com\/eye-surgery\/reconstructive-and-cosmetic-eyelid-surgery\/pterygium\/\n<\/div><\/figure>\n\n\n\n\n\n

\n\n \n \n \n<\/a>\n<\/p>\n\n\n\n

Le pt\u00e9rygion<\/strong> est une tumeur b\u00e9nigne d’origine conjonctivale envahissant la corn\u00e9e.
Il est le plus souvent situ\u00e9 au niveau du \u00ab blanc \u00bb de l’\u0153il dans l’angle interne des paupi\u00e8res (le canthus), du c\u00f4t\u00e9 du nez.
Cette tumeur conjonctivo-\u00e9lastique adopte le plus souvent la forme d’un triangle compar\u00e9 \u00e0 une \u00ab aile \u00bb (\u00e9tymologie grecque du terme pterys).<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Favoris\u00e9 par l\u2019exposition aux UV et la s\u00e9cheresse oculaire.<\/p>\n\n\n\n

Le traitement chirurgical du pt\u00e9rygion comporte plusieurs objectifs :<\/p>\n\n\n\n

Garder la fonction visuelle menac\u00e9e par l’envahissement progressif de la surface corn\u00e9enne, restaurer l’esth\u00e9tique de l’\u0153il,  \u00e9viter les r\u00e9cidives, restaurer la fonction visuelle en cas d’envahissement de l’aire pupillaire.<\/p>\n\n\n\n

Spontan\u00e9ment, apr\u00e8s une ex\u00e9r\u00e8se simple la r\u00e9cidive survient en effet dans une proportion importante des cas, variable selon l’\u00e9volution de la l\u00e9sion et le caract\u00e8re primaire ou secondaire de l’intervention. <\/p>\n\n\n\n

Il faut bien poser le moment de l\u2019indication op\u00e9ratoire car plus on op\u00e8re, plus le risque de r\u00e9cidive augmente.<\/p>\n\n\n\n

Cela pose des probl\u00e8mes th\u00e9rapeutiques, du fait de l’\u00e9puisement du capital conjonctival disponible pour l’autogreffe.
Il est donc capital de mettre en \u0153uvre la meilleure strat\u00e9gie pr\u00e9ventive possible d\u00e8s la premi\u00e8re intervention de pt\u00e9rygion.<\/p>\n\n\n\n

Pour \u00e9viter les r\u00e9cidives fr\u00e9quentes, certaines m\u00e9thodes sont bas\u00e9es sur la destruction des cellules fibroblastiques conjonctivales application de mitomycine C ou d’autre agent antim\u00e9tabolite (thioth\u00e9pa), radioth\u00e9rapie par irradiation b\u00eata au Strontium 90.<\/p>\n\n\n\n

La majorit\u00e9 des m\u00e9thodes actuellement employ\u00e9es font une place \u00e0 la reconstruction de la zone d’ex\u00e9r\u00e8se : <\/p>\n\n\n\n

>par une autogreffe de conjonctive<\/strong>, excellente m\u00e9thode et simple, <\/p>\n\n\n\n

>par une autogreffe corn\u00e9enne<\/strong>,<\/p>\n\n\n\n

>par un allogreffe corn\u00e9enne lamellaire<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"

Le pt\u00e9rygion est une tumeur b\u00e9nigne d’origine conjonctivale envahissant la corn\u00e9e.Il est le plus souvent situ\u00e9 au niveau du \u00ab blanc \u00bb de l’\u0153il dans l’angle interne des paupi\u00e8res (le canthus), du c\u00f4t\u00e9 du nez.Cette tumeur conjonctivo-\u00e9lastique adopte le plus souvent la forme d’un triangle compar\u00e9 \u00e0 une \u00ab aile \u00bb (\u00e9tymologie grecque du terme […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-17064","post","type-post","status-publish","format-standard","hentry","category-reconstructieve-en-cosmetische-ooglidchirurgie"],"yoast_head":"\n%title%<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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