{"id":8311,"date":"2023-07-23T21:19:11","date_gmt":"2023-07-24T00:19:11","guid":{"rendered":"https:\/\/cloveonline.com\/?p=8311"},"modified":"2025-09-03T16:33:10","modified_gmt":"2025-09-03T19:33:10","slug":"glaucoma-2","status":"publish","type":"post","link":"https:\/\/cloveonline.com\/?p=8311&lang=pt","title":{"rendered":"Glaucoma"},"content":{"rendered":"<p>O glaucoma \u00e9 definido como uma doen\u00e7a que causa aumento da press\u00e3o intraocular (PIO) incompat\u00edvel com a fun\u00e7\u00e3o ocular normal. Mais do que uma doen\u00e7a, o glaucoma deve ser considerado como um grupo diversificado de dist\u00farbios. Esse grupo de doen\u00e7as \u00e9 unificado em todas as esp\u00e9cies pelo dano ao nervo \u00f3ptico, que resulta na perda da vis\u00e3o. \u00c9 uma doen\u00e7a neurodegenerativa que resulta na morte de c\u00e9lulas neuronais, as C\u00e9lulas Ganglionares da Retina (CGR), que quase sempre culminam em cegueira. O diagn\u00f3stico \u00e9 feito por tonometria e estudo goniosc\u00f3pico (avaliar o \u00e2ngulo de drenagem do humor aquoso).<\/p>\n<p>Glaucoma consiste em 5 eventos:<br \/>\n1. Evento inicial, as sa\u00eddas do humor aquoso s\u00e3o afetadas.<br \/>\n2. Altera\u00e7\u00f5es f\u00edsicas que causam obstru\u00e7\u00e3o da sala do humor aquoso.<br \/>\n3. Press\u00e3o intraocular muito alta para o fluxo axoplasm\u00e1tico do nervo \u00f3ptico e o fluxo sangu\u00edneo.<br \/>\n4. Disfun\u00e7\u00e3o das c\u00e9lulas ganglionares da retina resultando em degenera\u00e7\u00e3o e atrofia do nervo \u00f3ptico.<br \/>\n5. Perda de campo visual e cegueira.<\/p>\n<p>&nbsp;<\/p>\n<div class=\"su-row\">\n<div class=\"su-column su-column-size-1-3\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<figure id=\"attachment_8306\" aria-describedby=\"caption-attachment-8306\" style=\"width: 361px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8306 size-full\" src=\"https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_C401587D2614-1.jpeg\" alt=\"\" width=\"361\" height=\"307\" srcset=\"https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_C401587D2614-1.jpeg 361w, https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_C401587D2614-1-300x255.jpeg 300w\" sizes=\"auto, (max-width: 361px) 100vw, 361px\" \/><figcaption id=\"caption-attachment-8306\" class=\"wp-caption-text\">Figura 1. Apariencia cl\u00e1sica de un ojo con glaucoma preesntando edema corneal, hiperemia escleral y midriasis.<\/figcaption><\/figure>\n<\/div><\/div>\n<div class=\"su-column su-column-size-1-3\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<figure id=\"attachment_8307\" aria-describedby=\"caption-attachment-8307\" style=\"width: 350px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8307 size-full\" src=\"https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_01058A12535F-1.jpeg\" alt=\"\" width=\"350\" height=\"270\" srcset=\"https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_01058A12535F-1.jpeg 350w, https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_01058A12535F-1-300x231.jpeg 300w\" sizes=\"auto, (max-width: 350px) 100vw, 350px\" \/><figcaption id=\"caption-attachment-8307\" class=\"wp-caption-text\">Figura 2. Evaluaci\u00f3n goniosc\u00f3pica de un \u00e1ngulo estrecho.<\/figcaption><\/figure>\n<\/div><\/div>\n<div class=\"su-column su-column-size-1-3\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<figure id=\"attachment_8308\" aria-describedby=\"caption-attachment-8308\" style=\"width: 313px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8308 size-full\" src=\"https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_FDDD27DC21C9-1.jpeg\" alt=\"\" width=\"313\" height=\"276\" srcset=\"https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_FDDD27DC21C9-1.jpeg 313w, https:\/\/cloveonline.com\/wp-content\/uploads\/2023\/07\/IMG_FDDD27DC21C9-1-300x265.jpeg 300w\" sizes=\"auto, (max-width: 313px) 100vw, 313px\" \/><figcaption id=\"caption-attachment-8308\" class=\"wp-caption-text\">Figura 3: excavaci\u00f3n del nervio \u00f3ptico.<\/figcaption><\/figure>\n<\/div><\/div>\n<\/div>\n<p>O glaucoma prim\u00e1rio \u00e9 a forma mais comum em c\u00e3es. Por defini\u00e7\u00e3o, n\u00e3o existe outra doen\u00e7a oftalmol\u00f3gica que possa acarretar em glaucoma. Est\u00e1 classificado em:<br \/>\n&#8211; Glaucoma cong\u00eanito: anormalidade no desenvolvimento p\u00f3s-natal das vias de drenagem do humor aquoso e pode incluir anormalidades do cristalino.<br \/>\n&#8211; Glaucoma prim\u00e1rio de \u00e2ngulo aberto: normal ou com incisura ciliar colapsada. \u00c9 caracterizada por um aumento gradualmente progressivo do globo ocular em pacientes de meia-idade.<br \/>\n&#8211; Glaucoma prim\u00e1rio de \u00e2ngulo fechado: presumivelmente cong\u00eanito, relatado em associa\u00e7\u00e3o com anormalidades goniosc\u00f3picas (displasia do ligamento pect\u00edneo).<\/p>\n<p>Em gatos e cavalos, o glaucoma secund\u00e1rio \u00e9 o mais comum. O mecanismo para a eleva\u00e7\u00e3o da PIO \u00e9 a obstru\u00e7\u00e3o da drenagem do humor aquoso; as principais causas s\u00e3o:<br \/>\n&#8211; Uve\u00edte cr\u00f4nica.<br \/>\n&#8211; Neoplasia intraocular.<br \/>\n&#8211; Glaucoma associado ao cristalino.<br \/>\n&#8211; Hemorragia intraocular.<\/p>\n<p>Existem ra\u00e7as predispostas \u00e0 doen\u00e7a, como Siam\u00eas e Birman\u00eas em gatos e American Cocker Spaniel, Basset Hound, Samoieda, Sharpei, Beagle, Husky Siberiano, Chow-Chow, Dogue Alem\u00e3o, Wire Fox Terrier, Toy Poodle e Standard em c\u00e3es.<\/p>\n<p>Os sinais cl\u00ednicos cl\u00e1ssicos envolvem:<br \/>\n&#8211; PIO aumentada (\u2191 de 30 mmHg).<br \/>\n&#8211; Midr\u00edase- Pupila fixa e dilatada. Este pode ser o \u00fanico sinal precoce observado em gatos ou c\u00e3es com glaucoma.<br \/>\n&#8211; Edema da c\u00f3rnea.<br \/>\n&#8211; Vasos episclerais dilatados e  congestionados.<br \/>\n&#8211; Dor nos olhos.<br \/>\n&#8211; Perda de vis\u00e3o e cegueira.<\/p>\n<p>O tratamento m\u00e9dico concentra-se no controle da PIO para evitar danos permanentes, mantendo a vis\u00e3o, eliminando a dor e evitando danos ao outro olho. Os medicamentos para o tratamento do glaucoma prim\u00e1rio s\u00e3o classificados como:<br \/>\n1) Inibidores da s\u00edntese do humor aquoso.<br \/>\n2) Facilitadores da elimina\u00e7\u00e3o do humor aquoso.<\/p>\n<p>Quando operar um paciente glaucomatoso?<br \/>\n&#8211; Olhos cronicamente afetados ou cegos.<br \/>\n&#8211; A cirurgia \u00e9 a \u00fanica op\u00e7\u00e3o dispon\u00edvel quando a vis\u00e3o continua a diminuir apesar da terapia m\u00e9dica m\u00e1xima.<br \/>\n&#8211; Outras situa\u00e7\u00f5es a considerar &#8211; custo, acompanhamento, idade, qualidade de vida.<br \/>\n&#8211; Deve-se preocupar-se com o outro olho, quando ainda n\u00e3o afetado. Os tutores devem ter no\u00e7\u00e3o de como reconhecer um olho com eleva\u00e7\u00e3o de press\u00e3o no olho bom e educ\u00e1-los para antecipar o tratamento imediatamente.<\/p>\n<p>Diferen\u00e7as nos objetivos dos procedimentos cir\u00fargicos:<br \/>\n1. Aumentar a drenagem do humor aquoso (constru\u00e7\u00e3o de vias alternativas para a drenagem do humor aquoso para fora do olho: trepana\u00e7\u00e3o da \u00edris e Gonioimplantantes.<br \/>\n2. Redu\u00e7\u00e3o da produ\u00e7\u00e3o do humor aquoso (destruindo parte do corpo ciliar)<br \/>\nCiclocriotermia<br \/>\nCiclofotocoagula\u00e7\u00e3o \u2013 Transescleral<br \/>\nCiclofotocoagula\u00e7\u00e3o \u2013 Endosc\u00f3pica<br \/>\n3. Redu\u00e7\u00e3o da dor: Enuclea\u00e7\u00e3o, eviscera\u00e7\u00e3o com coloca\u00e7\u00e3o de pr\u00f3tese intraocular ou abla\u00e7\u00e3o qu\u00edmica.<\/p>\n<p>\u00c9 importante considerar que, sendo uma doen\u00e7a cr\u00f4nica e progressiva, a preven\u00e7\u00e3o e o diagn\u00f3stico precoce por meio do reconhecimento dos sinais cl\u00ednicos iniciais constituem fator importante para o sucesso do seu controle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O glaucoma \u00e9 definido como uma doen\u00e7a que causa aumento da press\u00e3o intraocular (PIO) incompat\u00edvel com a fun\u00e7\u00e3o ocular normal. Mais do que uma doen\u00e7a, o glaucoma deve ser considerado como um grupo diversificado de dist\u00farbios. Esse grupo de doen\u00e7as \u00e9 unificado em todas as esp\u00e9cies pelo dano ao nervo \u00f3ptico, que resulta na perda [&#8230;]\n","protected":false},"author":1,"featured_media":8306,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-8311","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sem-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Glaucoma - CLOVE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cloveonline.com\/?p=8311&lang=pt\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Glaucoma - CLOVE\" \/>\n<meta property=\"og:description\" content=\"O glaucoma \u00e9 definido como uma doen\u00e7a que causa aumento da press\u00e3o intraocular (PIO) incompat\u00edvel com a fun\u00e7\u00e3o ocular normal. Mais do que uma doen\u00e7a, o glaucoma deve ser considerado como um grupo diversificado de dist\u00farbios. 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