{"id":1220,"date":"2010-06-16T14:41:57","date_gmt":"2010-06-16T17:41:57","guid":{"rendered":"http:\/\/ww16.ce.gov.br\/hgf\/2010\/06\/16\/ceratocone\/"},"modified":"2010-06-16T14:41:57","modified_gmt":"2010-06-16T17:41:57","slug":"ceratocone","status":"publish","type":"post","link":"https:\/\/www.ce.gov.br\/hgf\/2010\/06\/16\/ceratocone\/","title":{"rendered":"Ceratocone"},"content":{"rendered":"<p>O ceratocone \u00e9 um dist\u00farbio chamado distrofia continua e progressiva, que ocorre na c\u00f3rnea com afinamento central ou paracentral, geralmente inferior, resultando abaulamento anterior da c\u00f3rnea, na forma de cone.\u00a0 A apresenta\u00e7\u00e3o \u00e9 geralmente bilateral e assim\u00e9trica.\u00a0Trata-se de condi\u00e7\u00e3o rara, encontrada em todas as ra\u00e7as, nas\u00a0 diferentes partes do mundo, com preval\u00eancia que varia de 04 a 600 casos por 100.000 indiv\u00edduos. \u00a0Hist\u00f3ria familiar est\u00e1 presente de 6 a 8% dos casos, sugerindo heran\u00e7a familiar.<\/p>\n<p>Seu aparecimento mais comum ocorre na puberdade, geralmente entre os 13 e os 18 anos de idade, progride por aproximadamente 6 a 8 anos e ap\u00f3s, tende a permanecer est\u00e1vel. <\/p>\n<p>O ceratocone pode estar associado a doen\u00e7as sist\u00eamicas como as s\u00edndromes de Down, Turner, Ehlers-Danlos, Marfan, al\u00e9m de atopias, osteog\u00eanese imperfeita e prolapso da v\u00e1lvula mitral.\u00a0 Condi\u00e7\u00f5es oculares \u00e0s quais pode estar associado s\u00e3o a ceratoconjuntivite vernal, aniridia, amaurose cong\u00eanita de Leber e retinose pigmentar. O paciente pode relatar mudan\u00e7as frequentes na prescri\u00e7\u00e3o de \u00f3culos ou diminui\u00e7\u00e3o na toler\u00e2ncia ao uso de lentes de contato.<br \/>Uma complica\u00e7\u00e3o que pode ocorrer \u00e9 a hidropsia aguda, l\u00edquido que penetra nas camadas da c\u00f3rnea, provoca diminui\u00e7\u00e3o s\u00fabita da acuidade visual associada a desconforto e lacrimejamento. O tratamento do epis\u00f3dio agudo \u00e9 feito com solu\u00e7\u00e3o salina hipert\u00f4nica e oclus\u00e3o, ou lente de contato terap\u00eautica.\u00a0 Com a cicatriza\u00e7\u00e3o, que ocorre entre 6 e 10 semanas, pode haver melhora da acuidade visual devido ao aplanamento da c\u00f3rnea.<\/p>\n<p>O tratamento do ceratocone \u00e9 feito inicialmente, nos casos mais brandos, com \u00f3culos. Para astigmatismos maiores, avan\u00e7ados lentes de contato r\u00edgidas podem ser adaptadas com sucesso. Alguns casos, hoje, tem melhora com adapta\u00e7\u00e3o de lentes hidrof\u00edlicas pr\u00f3prias para ceratocone.<br \/>O tratamento cir\u00fargico, com transplante penetrante de c\u00f3rnea, \u00e9 indicado para os casos mais avan\u00e7ados ou com cicatrizes extensas que n\u00e3o melhoram com lentes de contato. Ap\u00f3s a cirurgia geralmente \u00e9 necess\u00e1rio o uso de lentes de contato para obten\u00e7\u00e3o de melhor acuidade visual.<\/p>\n<p><strong>Lentes de Contato e Ceratocone<\/strong><\/p>\n<p>O uso de lentes de contato em pacientes com ceratocone \u00e9 considerado quando os \u00f3culos n\u00e3o possibilitam boa vis\u00e3o. Ao adaptar uma lente de contato no paciente o oftalmologista busca condi\u00e7\u00f5es que possibilitem uma adapta\u00e7\u00e3o mais fisiol\u00f3gica, em que ocorra uma menor agress\u00e3o \u00e0 c\u00f3rnea com menor probabilidade de piora de evolu\u00e7\u00e3o do ceratocone. Todo usu\u00e1rio de lentes de contato deve fazer uma avalia\u00e7\u00e3o peri\u00f3dica de sua adapta\u00e7\u00e3o (6\/6 meses). \u00c9 importante orientar o paciente em rela\u00e7\u00e3o \u00e0 limpeza das lentes de contato. As LC devem ser limpas e desinfectadas a cada uso. Isso deve ser feito por meio de fric\u00e7\u00e3o e enx\u00e1gue, com o uso de solu\u00e7\u00f5es apropriadas.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Fonte: Conselho Brasileiro de Oftalmologia<\/strong> (www.cbo.com.br) <\/p>\n","protected":false},"excerpt":{"rendered":"<p>O ceratocone \u00e9 um dist\u00farbio chamado distrofia continua e progressiva, que ocorre na c\u00f3rnea com afinamento central ou paracentral, geralmente inferior, resultando abaulamento anterior da c\u00f3rnea, na forma de cone.\u00a0 A apresenta\u00e7\u00e3o \u00e9 geralmente bilateral e assim\u00e9trica.\u00a0Trata-se de condi\u00e7\u00e3o rara, encontrada em todas as ra\u00e7as, nas\u00a0 diferentes partes do mundo, com preval\u00eancia que varia de [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1220","post","type-post","status-publish","format-standard","hentry","category-instituicao"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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