{"id":882,"date":"2025-05-08T13:32:18","date_gmt":"2025-05-08T10:32:18","guid":{"rendered":"https:\/\/wiki.dev.voka.io\/diseases\/uncategorized\/pterigium\/"},"modified":"2025-07-30T12:48:42","modified_gmt":"2025-07-30T09:48:42","slug":"pterigio","status":"publish","type":"diseases_post","link":"https:\/\/wiki.dev.voka.io\/pt\/doencas\/oculares\/pterigio\/","title":{"rendered":"Pter\u00edgio: Etiologia, graus, diagn\u00f3stico, tratamento"},"content":{"rendered":"<p><?xml encoding=\"UTF-8\" ?><\/p>\n<p>O pter\u00edgio \u00e9 uma patologia do segmento anterior do olho caracterizada pelo crescimento progressivo de tecido fibrovascular vascularizado em forma de asa no lado da conjuntiva bulbar atrav\u00e9s do limbo sobre a c\u00f3rnea adjacente.<\/p>\n<h2 class=\"wp-block-heading\" id=\"a-etiologia\">A etiologia<\/h2>\n<p>Atualmente, acredita-se que os factores provocadores mais importantes do pter\u00edgio s\u00e3o os n\u00edveis elevados de insola\u00e7\u00e3o, as altera\u00e7\u00f5es na composi\u00e7\u00e3o do fluido lacrimal, o desequil\u00edbrio das citocinas, os factores de crescimento e as muta\u00e7\u00f5es no gene p53.<\/p>\n<h2 class=\"wp-block-heading\" id=\"anatomia\">Anatomia<\/h2>\n<p>Anatomicamente, o pter\u00edgio \u00e9 descrito como tendo tr\u00eas partes: cabe\u00e7a, pesco\u00e7o e corpo. A cabe\u00e7a \u00e9 a parte invasiva da massa triangular e \u00e9 normalmente a parte progressiva. Pesco\u00e7o \u2013 a parte comunicante entre o corpo e a cabe\u00e7a que cobre o limbo, a parte mais estreita do pter\u00edgio. Corpo \u2013 a parte conjuntival mais larga do pter\u00edgio, com a base na dire\u00e7\u00e3o do canto medial do olho. Tamb\u00e9m pode haver opacidade superficial da c\u00f3rnea \u00e0 frente da ponta do pter\u00edgio (halo), tanto nas fases iniciais como nas fases tardias da doen\u00e7a.    <\/p>\n<p>A principal carater\u00edstica da anatomia do pter\u00edgio s\u00e3o os vasos dilatados em compara\u00e7\u00e3o com os vasos conjuntivais circundantes normais. O pter\u00edgio tem uma colora\u00e7\u00e3o bastante transl\u00facida.  <\/p>\n<h2 class=\"wp-block-heading\" id=\"classificacao-do-pterigio\">Classifica\u00e7\u00e3o do pter\u00edgio<\/h2>\n<p>Dependendo do comprimento, o pter\u00edgio \u00e9 classificado em 3 graus:<\/p>\n<ul class=\"wp-block-list\">\n<li>Est\u00e1gio I \u2013 inicial, a cabe\u00e7a do pter\u00edgio \u00e9 observada apenas na \u00e1rea limbal da c\u00f3rnea, sem altera\u00e7\u00e3o da fun\u00e7\u00e3o visual ou da refra\u00e7\u00e3o;<\/li>\n<li>Est\u00e1gio II \u2013 a cabe\u00e7a do pter\u00edgio est\u00e1 localizada no meio do intervalo entre o limbo e a proje\u00e7\u00e3o do bordo exterior da pupila no estado normal (3 mm). Existe um astigmatismo corneano irregular imediatamente \u00e0 frente da cabe\u00e7a do pter\u00edgio, e na zona central \u2013 astigmatismo correto de pequenos valores. A acuidade visual geralmente n\u00e3o \u00e9 reduzida;  <\/li>\n<li>Est\u00e1dio III \u2013 a cabe\u00e7a do pter\u00edgio localiza-se na c\u00f3rnea na proje\u00e7\u00e3o do di\u00e2metro da pupila \u00e0 luz do dia (3 mm), o astigmatismo pode atingir at\u00e9 13 dioptrias devido ao espessamento do meridiano horizontal da c\u00f3rnea, as fun\u00e7\u00f5es visuais s\u00e3o reduzidas.<\/li>\n<\/ul>\n<p>Existe tamb\u00e9m uma classifica\u00e7\u00e3o que se baseia numa avalia\u00e7\u00e3o da propens\u00e3o do pter\u00edgio para um crescimento progressivo:<\/p>\n<ul class=\"wp-block-list\">\n<li>Grau 1 \u2013 a membrana \u00e9 transl\u00facida, atr\u00f3fica e os vasos episclerais s\u00e3o claramente vis\u00edveis atrav\u00e9s dela. O risco de progress\u00e3o \u00e9 baixo; <\/li>\n<li>2\u00ba grau \u2013 ativo. O pter\u00edgio \u00e9 transl\u00facido, localizado acima da c\u00f3rnea, os vasos episclerais s\u00e3o parcialmente vis\u00edveis; <\/li>\n<li>Grau 3 \u2013 altamente ativo, consist\u00eancia carnuda, opaco, de cor escarlate. Os vasos da episclera n\u00e3o podem ser avaliados. <strong><\/strong><\/li>\n<\/ul>\n<p><strong>Classifica\u00e7\u00e3o do pter\u00edgio de acordo com o comprimento e a propens\u00e3o para crescer<\/strong><\/p>\n<figure class=\"wp-block-table table-to-cards\">\n<table>\n<thead>\n<tr>\n<th class=\"has-text-align-center\" data-align=\"center\">Grau<\/th>\n<th>Descri\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Por distribui\u00e7\u00e3o em rela\u00e7\u00e3o \u00e0 c\u00f3rnea:<\/strong><br \/>Fase I<\/td>\n<td>Cabe\u00e7a de pter\u00edgio na zona limbal da c\u00f3rnea, sem altera\u00e7\u00f5es da vis\u00e3o ou da refra\u00e7\u00e3o.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Fase II<\/td>\n<td>Cabe\u00e7a a meio entre o limbo e a proje\u00e7\u00e3o do bordo exterior da pupila (3 mm), astigmatismo irregular na frente da cabe\u00e7a, no centro \u2013 corrigir o astigmatismo fraco; vis\u00e3o preservada.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">Fase III<\/td>\n<td>Cabe\u00e7a na proje\u00e7\u00e3o do di\u00e2metro da pupila (3 mm), astigmatismo at\u00e9 13 dioptrias, diminui\u00e7\u00e3o da vis\u00e3o.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><strong>Por propens\u00e3o para crescer:<\/strong><br \/>1\u00ba grau<\/td>\n<td>A membrana \u00e9 transl\u00facida, atr\u00f3fica e os vasos episclerais s\u00e3o claramente vis\u00edveis; o risco de progress\u00e3o \u00e9 baixo.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">2\u00ba grau<\/td>\n<td>Pter\u00edgio transl\u00facido, vasos episclerais parcialmente vis\u00edveis; crescimento ativo.<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\">3\u00ba grau<\/td>\n<td>Pter\u00edgio carnudo, de cor escarlate, vasos episclerais n\u00e3o vis\u00edveis; risco elevado de progress\u00e3o.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p><a href=\"https:\/\/catalog.voka.io\/en\/models\/56bb91a2-f805-4f37-9c02-e68fff3fd23f\/ccd0cdc1-de41-43ed-a7ae-81e9c872d4ac\/32648996-ba7b-4daa-a099-6d95160ea214\/2f1ce96f-ae9c-48b0-8495-1be08f9388cb\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Modelos 3D<\/a> de pter\u00edgio em diferentes est\u00e1gios:<\/p>\n<div class=\"carousel-block\">\n<div class=\"swiper carousel-swiper carousel-swiper-block_69eefb0a72377\">\n<div class=\"swiper-wrapper\">\n<div class=\"swiper-slide image-carousel-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/%20Ophthalmology\/%20Pterygium\/Pter_1%20(1).webp\" alt=\"Pter\u00edgio est\u00e1dio I\"><span class=\"small-text-article text-main-text-color\">Pter\u00edgio est\u00e1dio I<\/span><\/div>\n<div class=\"swiper-slide image-carousel-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/%20Ophthalmology\/%20Pterygium\/Pter_2%20(1).webp\" alt=\"Pter\u00edgio est\u00e1dio II\"><span class=\"small-text-article text-main-text-color\">Pter\u00edgio est\u00e1dio II<\/span><\/div>\n<div class=\"swiper-slide image-carousel-slide\"><img decoding=\"async\" class=\"carousel-image\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/articles\/%20Ophthalmology\/%20Pterygium\/Pter_3%20(1).webp\" alt=\"Pter\u00edgio est\u00e1dio III\"><span class=\"small-text-article text-main-text-color\">Pter\u00edgio est\u00e1dio III<\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"swiper-article-carousel__controls\">\n<div class=\"swiper-article-carousel__pagination-container swiper-article-carousel__pagination-container-block_69eefb0a72377\"><\/div>\n<div class=\"swiper-article-carousel__arrows\"><button class=\"swiper__arrow swiper__arrow--prev carousel-swiper-button-prev swiper__arrow swiper__arrow--prev 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fill=\"none\"><path d=\"M20 3.75C16.7861 3.75 13.6443 4.70305 10.972 6.48862C8.29969 8.27419 6.21689 10.8121 4.98696 13.7814C3.75704 16.7507 3.43524 20.018 4.06225 23.1702C4.68926 26.3224 6.23692 29.2179 8.50952 31.4905C10.7821 33.7631 13.6776 35.3107 16.8298 35.9378C19.982 36.5648 23.2493 36.243 26.2186 35.013C29.1879 33.7831 31.7258 31.7003 33.5114 29.028C35.297 26.3557 36.25 23.2139 36.25 20C36.2455 15.6916 34.5319 11.561 31.4855 8.51454C28.439 5.46806 24.3084 3.75455 20 3.75ZM23.3844 25.3656C23.5005 25.4818 23.5926 25.6196 23.6555 25.7714C23.7184 25.9231 23.7507 26.0858 23.7507 26.25C23.7507 26.4142 23.7184 26.5769 23.6555 26.7286C23.5926 26.8804 23.5005 27.0182 23.3844 27.1344C23.2682 27.2505 23.1304 27.3426 22.9786 27.4055C22.8269 27.4683 22.6643 27.5007 22.5 27.5007C22.3358 27.5007 22.1731 27.4683 22.0214 27.4055C21.8696 27.3426 21.7318 27.2505 21.6156 27.1344L15.3656 20.8844C15.2494 20.7683 15.1572 20.6304 15.0943 20.4787C15.0314 20.3269 14.999 20.1643 14.999 20C14.999 19.8357 15.0314 19.6731 15.0943 19.5213C15.1572 19.3696 15.2494 19.2317 15.3656 19.1156L21.6156 12.8656C21.7318 12.7495 21.8696 12.6574 22.0214 12.5945C22.1731 12.5317 22.3358 12.4993 22.5 12.4993C22.6643 12.4993 22.8269 12.5317 22.9786 12.5945C23.1304 12.6574 23.2682 12.7495 23.3844 12.8656C23.5005 12.9818 23.5926 13.1196 23.6555 13.2714C23.7184 13.4231 23.7507 13.5858 23.7507 13.75C23.7507 13.9142 23.7184 14.0769 23.6555 14.2286C23.5926 14.3804 23.5005 14.5182 23.3844 14.6344L18.0172 20L23.3844 25.3656Z\" fill=\"#B5C0CD\"><\/path><\/svg><\/button><\/div>\n<\/div>\n<\/div>\n<p><script defer>\n    document.addEventListener('DOMContentLoaded', function() {\n        const imagesCarouselSwiper = new Swiper('.carousel-swiper-block_69eefb0a72377', {\n            slidesPerView: 1,\n            spaceBetween: 20,\n            loop: true,\n            pagination: {\n                el: '.swiper-article-carousel__pagination-container-block_69eefb0a72377',\n                clickable: true,\n            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<\/li>\n<li>Queratometria;<\/li>\n<li>Tonometria;<\/li>\n<li>Tomografia de coer\u00eancia \u00f3tica do segmento anterior do olho.<\/li>\n<\/ul>\n<p>Exame f\u00edsico: biomicroscopia do segmento anterior com l\u00e2mpada de fenda. <\/p>\n<h2 class=\"wp-block-heading\" id=\"quadro-clinico\">Quadro cl\u00ednico<\/h2>\n<p>O diagn\u00f3stico de pter\u00edgio baseia-se em manifesta\u00e7\u00f5es cl\u00ednicas como:<\/p>\n<ul class=\"wp-block-list\">\n<li>Crescimento fibrovascular da conjuntiva dentro da fenda ocular aberta;<\/li>\n<li>Espalha-se para a superf\u00edcie da c\u00f3rnea;<\/li>\n<li>A membrana tem uma forma triangular ou trapezoidal;<\/li>\n<li>Cresce no lado nasal e temporal do globo ocular;<\/li>\n<li>A massa \u00e9 de cor branca a rosa, dependendo da presen\u00e7a de vasos sangu\u00edneos;<\/li>\n<li>Linha epitelial pigmentada de acumula\u00e7\u00e3o de ferro (Stoker) adjacente ao pter\u00edgio, indicativa de uma evolu\u00e7\u00e3o cr\u00f3nica. <\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"tratamento-do-pterigio\">Tratamento do pter\u00edgio<\/h2>\n<p>Existem v\u00e1rias op\u00e7\u00f5es terap\u00eauticas para o pter\u00edgio, desde o tratamento conservador at\u00e9 \u00e0 remo\u00e7\u00e3o cir\u00fargica. <\/p>\n<p>Devido ao potencial de recorr\u00eancia, bem como a outras complica\u00e7\u00f5es, a remo\u00e7\u00e3o cir\u00fargica do pter\u00edgio n\u00e3o deve ser efectuada casualmente. A remo\u00e7\u00e3o cir\u00fargica de um pter\u00edgio est\u00e1 indicada se causar desconforto persistente, for resistente \u00e0 terapia conservadora, obscurecer o eixo visual ou causar diminui\u00e7\u00e3o da fun\u00e7\u00e3o visual devido ao astigmatismo induzido, aumentar de tamanho ou limitar a mobilidade ocular.  <\/p>\n<h3 class=\"wp-block-heading\" id=\"tratamento-medicamentoso\">Tratamento medicamentoso<\/h3>\n<p>O pter\u00edgio inflamado pode causar irrita\u00e7\u00e3o, sensa\u00e7\u00e3o de corpo estranho e lacrimejamento, que em muitos casos podem ser aliviados com gotas de venda livre com alto teor de Dexpantenol ou \u00c1cido Hialur\u00f3nico. Podem ser utilizados cursos curtos de corticoster\u00f3ides t\u00f3picos para reduzir a inflama\u00e7\u00e3o: Dexametasona col\u00edrio 0,1%, Hidrocortisona pomada ocular 0,5%, mas n\u00e3o se recomenda a utiliza\u00e7\u00e3o prolongada destes medicamentos.  <\/p>\n<div class=\"social-banner-block\">\n<div class=\"social-banner-content\">\n<p class=\"h5-title text-black\">Encontra mais conte\u00fados cientificamente exactos nas nossas redes sociais<\/p>\n<p><span class=\"social-banner-text text-grey\">Subscreve e n\u00e3o percas os recursos mais recentes<\/span><\/p>\n<div class=\"social-links-wrapper\"><a class=\"social-icon-link\" href=\"https:\/\/www.facebook.com\/VOKA3DAnatomyAndPathology\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/facebook.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.instagram.com\/voka.io\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/insta.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.linkedin.com\/company\/voka-io\/posts\/?feedView=all\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/linkedin.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.youtube.com\/@vokaio\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/youtube.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.pinterest.com\/voka3danatomyandpathology\/\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/pinterest.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/www.tiktok.com\/@voka.io\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/tiktok.svg\" alt=\"social link\"><\/a><a class=\"social-icon-link\" href=\"https:\/\/discord.gg\/7ejUpq8DRR\" target=\"_blank\" rel=\"nofollow noopener\"><img decoding=\"async\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/Social%20Icons\/discord.svg\" alt=\"social link\"><\/a><\/div>\n<\/div>\n<p><img decoding=\"async\" class=\"social-banner-image\" loading=\"lazy\" src=\"https:\/\/storage.googleapis.com\/dev_wiki_voka_io_303011\/common\/social-media-banner-mobile-image.webp\" alt=\"Banner background\"><\/div>\n<h3 class=\"wp-block-heading\" id=\"tratamento-cirurgico\">Tratamento cir\u00fargico<\/h3>\n<p>Atualmente, a excis\u00e3o completa com auto-enxerto conjuntival \u00e9 considerada o padr\u00e3o de ouro devido \u00e0 baixa taxa de recorr\u00eancia.<\/p>\n<p>A excis\u00e3o com um enxerto de membrana amni\u00f3tica pode ser considerada uma alternativa ao auto-enxerto conjuntival, embora a taxa de recorr\u00eancia seja ainda mais elevada do que com o auto-enxerto conjuntival.<\/p>\n<p>A excis\u00e3o simples com exposi\u00e7\u00e3o da escler\u00f3tica ou o encerramento da conjuntiva resulta numa taxa de recorr\u00eancia de at\u00e9 80% e \u00e9 atualmente considerada inaceit\u00e1vel.<\/p>\n<p>Queratoplastia perif\u00e9rica camada a camada, devido a opacidade da c\u00f3rnea.<\/p>\n<div>\n<h2 class=\"faq-title h2-article\" id=\"faq\">FAQ<\/h2>\n<div class=\"faq-section\">\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">1. Quais s\u00e3o os perigos do pter\u00edgio?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">O pter\u00edgio \u00e9 perigoso em caso de crescimento progressivo. Pode provocar uma diminui\u00e7\u00e3o da acuidade visual devido ao aparecimento de astigmatismo, que em casos avan\u00e7ados atinge as 13 dioptrias. Quando o pter\u00edgio cresce at\u00e9 \u00e0 proje\u00e7\u00e3o da pupila na c\u00f3rnea, sobrep\u00f5e-se mecanicamente \u00e0 zona \u00f3tica, provocando uma defici\u00eancia visual persistente. Al\u00e9m disso, o crescimento excessivo do pter\u00edgio provoca uma irrita\u00e7\u00e3o cr\u00f3nica da superf\u00edcie ocular, que se manifesta por hiperemia, sensa\u00e7\u00e3o de corpo estranho e fotofobia.   <\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">2. Quando \u00e9 que um pter\u00edgio deve ser operado?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">O tratamento cir\u00fargico \u00e9 recomendado se houver indica\u00e7\u00f5es. Isto inclui os casos em que o pter\u00edgio est\u00e1 a crescer ativamente e a aproximar-se da pupila, causando astigmatismo significativo e diminui\u00e7\u00e3o da fun\u00e7\u00e3o visual. O tratamento cir\u00fargico tamb\u00e9m \u00e9 indicado em casos de desconforto persistente, inflama\u00e7\u00e3o que n\u00e3o se resolve com tratamento conservador e defeito cosm\u00e9tico se o paciente estiver a sentir desconforto psicol\u00f3gico.  <\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">3. Precisas de remover o pter\u00edgio?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">Nem todos os pter\u00edgios necessitam de ser removidos. Nas fases iniciais, quando a massa \u00e9 pequena e n\u00e3o afecta a vis\u00e3o, a observa\u00e7\u00e3o e a prote\u00e7\u00e3o dos olhos contra a luz solar s\u00e3o suficientes. No entanto, se o pter\u00edgio progredir, causar problemas de acuidade visual ou irrita\u00e7\u00e3o da superf\u00edcie ocular, torna-se necess\u00e1rio um tratamento cir\u00fargico. As t\u00e9cnicas modernas, como o autotransplante conjuntival, reduzem significativamente o risco de recorr\u00eancia.   <\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<div class=\"faq-item faq-answer-hidden\">\n<div class=\"question-block\">\n<div class=\"faq-question\">\n<p class=\" text-black h5-title\">4. Quanto tempo dura o per\u00edodo de recupera\u00e7\u00e3o ap\u00f3s a remo\u00e7\u00e3o do pter\u00edgio?<\/p>\n<\/div>\n<div class=\"faq-answer text-main-text-color main-text-medium\">A recupera\u00e7\u00e3o depende do m\u00e9todo de tratamento cir\u00fargico. Ap\u00f3s a remo\u00e7\u00e3o padr\u00e3o com enxerto conjuntival, a cicatriza\u00e7\u00e3o completa demora cerca de 2-4 semanas. Nos primeiros dias, \u00e9 poss\u00edvel sentir dor moderada, incha\u00e7o da conjuntiva, lacrimejo e fotofobia. A acuidade visual estabiliza-se dentro de 1-2 meses, especialmente se houver um astigmatismo pronunciado. Para evitar uma reca\u00edda, \u00e9 importante seguir as recomenda\u00e7\u00f5es do m\u00e9dico: utiliza as gotas prescritas, evita a luz solar e protege os olhos com \u00f3culos com filtro UV.    <\/div>\n<\/div>\n<div class=\"expand-button-wrapper\"><button class=\"text-accent expand-button\">+<\/button><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"sources-list-block sources-list-hidden\" id=\"lista-de-fontes\">\n<div class=\"sources-list-content\">\n<div class=\"sources-list-title\">\n<p class=\"small-text-bold text-black sources-list-title-text\">Lista de fontes<\/p>\n<div class=\"sources-expand-button-wrapper-mobile\">\n<div class=\"sources-expand-button\"><svg width=\"32\" height=\"32\" viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 12L16 20L24 12\" stroke=\"#8C9AAB\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n<div class=\"sources-list-items\">\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">1.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Delic, N. C., Lyons, J. G., Di Girolamo, N. D., and Halliday, G. M. (2017). Damaging effects of ultraviolet radiation on the cornea. Photochem. Photobiol.    93, 920\u2013929. doi: 10.1111\/php.12686. <\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">2.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Ting, D. S. J., Foo, V. H. X., Yang, L. W. Y., Sia, J. T., Ang, M., Lin, H. T., et al. (2021). Artificial intelligence for anterior segment diseases: emerging applications in ophthalmology. Br. J. Ophthalmol. 105, 158\u2013168. doi: 10.1136\/bjophthalmol-2019-315651.    <\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">3.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Zhou, Z., Wu, R., Yang, Y., and Li, J. (2018). Analysis of the relationship between corneal aberration and the size of pterygium. J. Clin. Ophthalmol.    4, 315\u2013317.<\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">4.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Droutsas K, Sekundo W (2010) Epidemiology of pterygium. A review. Ophthalmologe 107(6):511\u2013516.   <\/p>\n<p><span class=\"small-text-medium text-grey\">https:\/\/doi.org\/10.1007\/s00347-009-2101-3<\/span><\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">5.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Kim SW, Park S, Im CY et al (2014) Prediction of mean corneal power change after pterygium excision. Cornea 33(2):148\u2013153.  <\/p>\n<p><span class=\"small-text-medium text-grey\">https:\/\/doi.org\/10.1097\/ICO.0000000000000036<\/span><\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">6.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Maurizi, E. et al. Tara. A novel role for CRIM1 in the corneal response to UV and pterygium development. Exp. Eye Res.     179 (2019).<\/p>\n<\/div>\n<\/div>\n<div class=\"source-item\">\n<p class=\"main-text-semibold text-black\">7.<\/p>\n<div class=\"source-item-content\">\n<p class=\"main-text-semibold text-black\">Hu, Y., Atik, A., Qi, W. & Yuan, L. The association between primary pterygium and corneal endothelial cell density. Clin. Exp. Optom. 103, 778\u2013781.     <\/p>\n<p><span class=\"small-text-medium text-grey\">https:\/\/doi.org\/10.1111\/cxo.13049 (2020).<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"sources-expand-button-wrapper\">\n<div class=\"sources-expand-button\"><svg width=\"32\" height=\"32\" viewbox=\"0 0 32 32\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 12L16 20L24 12\" stroke=\"#8C9AAB\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>O pter\u00edgio \u00e9 uma patologia do segmento anterior do olho caracterizada pelo crescimento progressivo de tecido fibrovascular vascularizado em forma de asa no lado da conjuntiva bulbar atrav\u00e9s do limbo sobre a c\u00f3rnea adjacente. A etiologia Atualmente, acredita-se que os factores provocadores mais importantes do pter\u00edgio s\u00e3o os n\u00edveis elevados de insola\u00e7\u00e3o, as altera\u00e7\u00f5es na [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"template":"","diseases_category":[300],"class_list":["post-882","diseases_post","type-diseases_post","status-publish","hentry","diseases_category-oculares"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pter\u00edgio - O que \u00e9, causas, graus, diagn\u00f3stico, tratamento<\/title>\n<meta name=\"description\" content=\"Pter\u00edgio: classifica\u00e7\u00e3o, manifesta\u00e7\u00f5es cl\u00ednicas e tratamento. Considera os graus de pter\u00edgio em fun\u00e7\u00e3o do comprimento e da propens\u00e3o para o crescimento. 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