{"id":71025,"date":"2017-05-23T13:34:52","date_gmt":"2017-05-23T13:34:52","guid":{"rendered":"http:\/\/humanitasnet-new.local\/malattie\/astigmatismul\/"},"modified":"2025-01-13T02:52:09","modified_gmt":"2025-01-13T02:52:09","slug":"astigmatismul","status":"publish","type":"disease","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/diseases\/astigmatismul\/","title":{"rendered":"Astigmatismul"},"content":{"rendered":"<p>Astigmatismul este o imperfec\u021biune obi\u0219nuit\u0103, moderat\u0103 \u0219i &icirc;n general u\u0219or de tratat aflat\u0103 la curbura ochiului. Aceast\u0103 afec\u021biune poate determina vedere neclar\u0103 \u0219i &icirc;nce\u021bo\u0219at\u0103. Astigmatismul apare atunci c&acirc;nd suprafa\u021ba frontal\u0103 a ochiului (corneea) sau a lentilei, din interiorul ochiului, are o curbur\u0103 de suprafa\u021b\u0103 pu\u021bin diferit\u0103 &icirc;ntr-o alt\u0103 direc\u021bie fa\u021b\u0103 de cealalt\u0103. &Icirc;n loc s\u0103 fie uniform\u0103 \u0219i neted\u0103 &icirc;n toate direc\u021biile, suprafa\u021ba poate avea ni\u0219te zone care sunt mai plate sau mai abrupte.<br \/>\nAstigmatismul estompeaz\u0103 viziunea pe toate distan\u021bele. Astigmatismul este adesea prezent la na\u0219tere \u0219i poate ap\u0103rea &icirc;n asociere cu miopia sau cu hipermetropia. Adesea nu este necesar\u0103 efectuarea unei ac\u021biuni de corectare. &Icirc;n cazuri mai severe, op\u021biunile de tratament includ lentile de corec\u021bie \u0219i interven\u021bii chirurgicale.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"simptome\">Simptome<\/h2>\n<p>Semnele \u0219i simptomele astigmatismului pot include:<br \/>\nFor\u021barea ochilor<br \/>\nVedere &icirc;nce\u021bo\u0219at\u0103 sau distorsionat\u0103<br \/>\nDureri de cap<\/p>\n<h2>\nCauze<\/h2>\n<p>Dou\u0103 elemente care focalizeaz\u0103 imaginile la ochi sunt corneea \u0219i lentilele. &Icirc;ntr-un ochi perfect modelat, fiecare dintre aceste elemente de focalizare are o curbur\u0103 perfect neted\u0103, ca suprafa\u021ba unei mingi netede. O cornee sau o lentil\u0103 cu o astfel de curbur\u0103 a suprafe\u021bei &icirc;ndoaie (refracteaz\u0103) toat\u0103 lumina care intr\u0103 &icirc;n acela\u0219i mod \u0219i red\u0103 o imagine focalizat\u0103 pe partea din spate a ochiului (retina).<br \/>\n&Icirc;n cazul &icirc;n care corneea sau lentila nu sunt curbate uniform \u0219i neted, razele de lumin\u0103 sunt focalizate inegal. Acest lucru cauzeaz\u0103 o eroare de refrac\u021bie. De fapt, astigmatismul este un tip de eroare de refrac\u021bie.<\/p>\n<p>&Icirc;n astigmatism, corneea sau lentila este curbat\u0103 mai abrupt &icirc;ntr-o direc\u021bie fa\u021b\u0103 de cealalt\u0103. Astigmatismul cornean apare atunci c&acirc;nd corneea are o form\u0103 distorsionat\u0103, &icirc;n timp ce astigmatismul lenticular apare atunci c&acirc;nd lentila este distorsionat\u0103.<br \/>\nOrice tip de astigmatism poate provoca vedere &icirc;nce\u021bo\u0219at\u0103 \u0219i poate s\u0103 apar\u0103 mai mult &icirc;ntr-o direc\u021bie, fie orizontal, vertical sau diagonal.<br \/>\nAstigmatismul poate s\u0103 apar\u0103 &icirc;n combina\u021bie cu alte erori de refrac\u021bie, cum ar fi miopia \u0219i hipermetropia.<\/p>\n<p>Astigmatismul poate fi prezent la na\u0219tere sau se poate dezvolta dup\u0103 o leziune ocular\u0103, boal\u0103 sau interven\u021bie chirurgical\u0103. Astigmatismul nu este cauzat sau agravat prin citirea la lumin\u0103 slab\u0103, statul prea aproape de televizor sau strabism.<\/p>\n<h2>\nFactori de risc<\/h2>\n<p>O cantitate infim\u0103 de astigmatism este foarte frecvent\u0103 \u0219i tendin\u021ba de a dezvolta astigmatism este mo\u0219tenit\u0103. O cantitate mai mare de astigmatism poate fi asociat\u0103 cu boli cum ar fi keratoconus.<\/p>\n<h2>\nComplica\u0163ii<\/h2>\n<p>Dac\u0103 o persoan\u0103 are astigmatism doar la un ochi \u0219i nu &icirc;l corecteaz\u0103, acest lucru poate provoca dezvoltarea ambliopiei (ochi lene\u0219).<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"profilaxie\">Profilaxie<\/h2>\n<p>Tipurile comune de astigmatism nu pot fi prevenite. Aten\u021bia &icirc;n privin\u021ba siguran\u021bei ochilor poate reduce inciden\u021ba astigmatismului cauzat de traumatisme ale corneei.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-71025","disease","type-disease","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Astigmatismul - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Astigmatismul - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Astigmatismul este o imperfec\u021biune obi\u0219nuit\u0103, moderat\u0103 \u0219i &icirc;n general u\u0219or de tratat aflat\u0103 la curbura ochiului. Aceast\u0103 afec\u021biune poate determina vedere neclar\u0103 \u0219i &icirc;nce\u021bo\u0219at\u0103. 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