{"id":137,"date":"2022-06-16T08:52:38","date_gmt":"2022-06-16T08:52:38","guid":{"rendered":"https:\/\/futura.study\/blog\/?p=137"},"modified":"2022-06-16T08:52:38","modified_gmt":"2022-06-16T08:52:38","slug":"il-daltonismo","status":"publish","type":"post","link":"https:\/\/futura.study\/blog\/materie\/biologia\/il-daltonismo\/","title":{"rendered":"IL DALTONISMO"},"content":{"rendered":"<h4>Il daltonismo che cos\u2019\u00e8?<\/h4>\n<p>\u00c8 una malattia che porta le persone a non percepire la differenza tra alcuni colori.<\/p>\n<p>Non tutte le persone daltoniche vedono allo stesso modo; ci sono due grandi categorie :<\/p>\n<ul>\n<li>acromatopsia: la visione monocromatica porta chi ne soffre a non percepire il rosso, il verde e il blu. In pratica, vedono il mondo in bianco e nero.<\/li>\n<li>bricromasia: la visione bricromatica porta chi ne soffre a non percepire uno dei tre colori primari. Ci sono tre sottocategorie che dividono la tipologia di daltonismo in base a quale colore primario non si riesce a percepire (per chi \u00e8 meno esperto in arte, ricordiamo che i colori primari sono verde, blu e rosso)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>Daltonici si nasce o si diventa?<\/h4>\n<p>La risposta corretta \u00e8 \u2026 entrambe! Il daltonismo \u00e8 un\u2019anomalia visiva che implica un\u2019alterata visione dei colori nei soggetti affetti: pu\u00f2 avere cause genetiche, ma pu\u00f2 essere causata anche da abuso di alcol o traumi cranici.<\/p>\n<p><em>&#8211; breve ripasso di genetica-<\/em><\/p>\n<p>Geneticamente, il daltonismo \u00e8 una malattia X-linked recessiva. In parole povere significa che per essere daltonici bisogna possedere la mutazione su tutti i cromosomi X in nostro possesso. A questo punto \u00e8 facilmente intuibile capire perch\u00e9 la percentuale degli uomini affetti \u00e8 molto pi\u00f9 elevata di quella delle donne; un uomo possiede solo un cromosoma X, una donna invece due.<\/p>\n<p>&nbsp;<\/p>\n<h4>Esiste una cura?<\/h4>\n<p>No, ad oggi non si pu\u00f2 ancora curare per\u00f2, con l\u2019avvento delle nuove terapie geniche, nel futuro potrebbero riuscire a correggere il gene mutato e permettere alle persone affette da daltonismo di scoprire nuovi colori.<\/p>\n<p>&nbsp;<\/p>\n<h4>Il test di Ishihara<\/h4>\n<p>Il metodo pi\u00f9 comune per diagnosticare il daltonismo \u00e8 quello con le tavole di Ishihara. Il test consiste nel mettere davanti al paziente delle tavole con dei numeri o simboli occultati all&#8217;interno di uno sfondo colorato. Le persone che percepiscono tutti i colori non avranno problemi a identificare i numeri, le persone daltoniche invece non riusciranno a distinguere il numero o simbolo dallo sfondo.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Il daltonismo che cos\u2019\u00e8? \u00c8 una malattia che porta le persone a non percepire la differenza tra alcuni colori. Non tutte le persone daltoniche vedono allo stesso modo; ci sono&#8230;<\/p>\n","protected":false},"author":1,"featured_media":138,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[2],"tags":[15,17],"class_list":["post-137","post","type-post","status-publish","format-standard","has-post-thumbnail","category-biologia","tag-biologia","tag-genetica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IL DALTONISMO - Futura Blog<\/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:\/\/futura.study\/blog\/materie\/biologia\/il-daltonismo\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IL DALTONISMO - Futura Blog\" \/>\n<meta property=\"og:description\" content=\"Il daltonismo che cos\u2019\u00e8? \u00c8 una malattia che porta le persone a non percepire la differenza tra alcuni colori. 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