{"id":8115,"date":"2016-04-18T15:04:56","date_gmt":"2016-04-18T14:04:56","guid":{"rendered":"https:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/?page_id=8115"},"modified":"2021-06-23T15:19:57","modified_gmt":"2021-06-23T14:19:57","slug":"traitement-de-lhypermetropie","status":"publish","type":"page","link":"https:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/chirurgie-refractive\/traitement-de-lhypermetropie\/","title":{"rendered":"Traitement de l\u2019hyperm\u00e9tropie"},"content":{"rendered":"<h2>Qu\u2019est ce que l\u2019hyperm\u00e9tropie ?<\/h2>\n<p>L&rsquo;\u0153il hyperm\u00e9trope est un \u0153il trop court ou pas assez convergent ; l\u2019image n\u2019est pas nette car elle se forme en arri\u00e8re de la r\u00e9tine. L&rsquo;hyperm\u00e9trope jeune peut compenser son trouble de vue en accommodant (augmentation de la convergence globale de l\u2019\u0153il par d\u00e9formation du cristallin), ce qui peut entra\u00eener des maux de t\u00eate, surtout en vision de pr\u00e8s prolong\u00e9e o\u00f9 l\u2019accommodation est encore plus sollicit\u00e9e. Plus tard, elle se traduit par une mauvaise vision de pr\u00e8s mais aussi de loin, particuli\u00e8rement chez les forts hyperm\u00e9tropes ou apr\u00e8s 50 ans o\u00f9 le pouvoir accommodatif est fortement abaiss\u00e9 (presbytie).<\/p>\n<p>La correction de l&rsquo;hyperm\u00e9tropie se fait par verres de lunettes ou lentilles de contact convexes qui ram\u00e8nent l\u2019image vers l\u2019avant sur la r\u00e9tine.<\/p>\n<p>Le m\u00eame effet peut \u00eatre obtenu en faisant bomber le centre de la corn\u00e9e au laser (augmentation globale de la convergence de l\u2019\u0153il).<\/p>\n<h2>Traitement chirurgical<\/h2>\n<p>Jusqu\u2019\u00e0 4-5 dioptries, l\u2019hyperm\u00e9tropie simple ou associ\u00e9e \u00e0 un astigmatisme se corrige par Lasik. Si elle est associ\u00e9e \u00e0 une presbytie ou lorsqu\u2019elle est sup\u00e9rieure \u00e0 5 dioptries, d\u2019autres techniques par implant intra-oculaire devront \u00eatre envisag\u00e9es. L\u2019\u00e2ge est le param\u00e8tre discriminant entre les implants r\u00e9fractifs phakes pour les plus jeunes avant 40 ans et les changements de cristallins au profit d\u2019implants multifocaux pour les plus de 50 ans (remplacement du cristallin naturel ayant perdu ses capacit\u00e9s physiologiques d\u2019accommodation par un cristallin artificiel).<\/p>\n<figure id=\"attachment_8167\" aria-describedby=\"caption-attachment-8167\" style=\"width: 683px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/wp-content\/uploads\/sites\/7\/2016\/04\/profil-ablation-hypermetrop.jpg\" rel=\"attachment wp-att-8167\"><img loading=\"lazy\" decoding=\"async\" class=\"zoom filet wp-image-8167 size-full\" src=\"https:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/wp-content\/uploads\/sites\/7\/2016\/04\/profil-ablation-hypermetrop.jpg\" alt=\"profil-ablation-hypermetrop\" width=\"683\" height=\"351\" srcset=\"https:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/wp-content\/uploads\/sites\/7\/2016\/04\/profil-ablation-hypermetrop.jpg 683w, https:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/wp-content\/uploads\/sites\/7\/2016\/04\/profil-ablation-hypermetrop-300x154.jpg 300w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/a><figcaption id=\"caption-attachment-8167\" class=\"wp-caption-text\">En violet, se trouve la zone trait\u00e9e par le laser pour une hyperm\u00e9tropie de 2 dioptries (\u00e0 gauche) et de 5 dioptries (\u00e0 droite).<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qu\u2019est ce que l\u2019hyperm\u00e9tropie ? L&rsquo;\u0153il hyperm\u00e9trope est un \u0153il trop court ou pas assez convergent ; l\u2019image n\u2019est pas nette car elle se forme en arri\u00e8re de la r\u00e9tine. L&rsquo;hyperm\u00e9trope jeune peut compenser son trouble de vue en accommodant (augmentation de la convergence globale de l\u2019\u0153il par d\u00e9formation du cristallin), ce qui peut entra\u00eener [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":8123,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-8115","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Traitement de l\u2019hyperm\u00e9tropie - Ophtalmologie<\/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:\/\/www.chu-poitiers.fr\/specialites\/ophtalmologie\/chirurgie-refractive\/traitement-de-lhypermetropie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Traitement de l\u2019hyperm\u00e9tropie - Ophtalmologie\" \/>\n<meta property=\"og:description\" content=\"Qu\u2019est ce que l\u2019hyperm\u00e9tropie ? 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