{"id":24477,"date":"2016-02-10T07:08:47","date_gmt":"2016-02-10T06:08:47","guid":{"rendered":"http:\/\/www.invarena.cz\/?p=24477"},"modified":"2016-02-10T07:08:47","modified_gmt":"2016-02-10T06:08:47","slug":"v-barcelone-voperovali-dvema-nevidomym-uspesne-bionicke-oko","status":"publish","type":"post","link":"https:\/\/www.invarena.cz\/?p=24477","title":{"rendered":"V Barcelon\u011b voperovali dv\u011bma nevidom\u00fdm \u00fasp\u011b\u0161n\u011b bionick\u00e9 oko"},"content":{"rendered":"

Dva nevidom\u00ed pacienti, jim\u017e loni v prosinci l\u00e9ka\u0159i ve \u0161pan\u011blsk\u00e9 Barcelon\u011b voperovali bionick\u00e9 oko, ji\u017e vid\u00ed siluety a rozpozn\u00e1vaj\u00ed osoby. Informovala o tom klinika Barraquer na tiskov\u00e9 konferenci.<\/strong><\/p>\n

Podle \u0161pan\u011blsk\u00e9ho den\u00edku ABC jsou nyn\u00ed Guadalupe Iglesiasov\u00e1 a Carlos Mart\u00ednez v \u0161estim\u011bs\u00ed\u010dn\u00ed rekonvalescenci, aby nau\u010dili mozek p\u0159ij\u00edmat vizu\u00e1ln\u00ed stimuly po letech \u00fapln\u00e9 tmy.<\/p>\n

Mart\u00ednez je teprve druh\u00fdm \u010dlov\u011bkem na sv\u011bt\u011b, kter\u00fd jako hluchoslep\u00fd, trp\u00edc\u00ed Usherov\u00fdm syndromem, dostal toto bionick\u00e9 oko. „Je to optimistick\u00fd a energick\u00fd pacient, a to je velmi dobr\u00e9 pro zotaven\u00ed,“ uvedla doktorka Ver\u00f3nica Pilottiov\u00e1. S\u00e1m Mart\u00ednez na tiskov\u00e9 konferenci vyj\u00e1d\u0159il velkou spokojenost a povzbudil dal\u0161\u00ed nevidom\u00e9, aby se operace neb\u00e1li. „Nem\u011bl jsem co ztratit, kdyby to nevy\u0161lo, z\u016fstal bych, jak\u00fd jsem,“ \u0159ekl Mart\u00ednez.<\/p>\n

Podle chirurga Jeroniho Nadala se t\u011bmto pacient\u016fm zrak nevr\u00e1t\u00ed zcela, ale budou rozezn\u00e1vat sv\u011btlo a tmu, pohyb i sv\u011btlo z televize. „Neuvid\u00ed v\u0161ak, co se vys\u00edl\u00e1,“ up\u0159esnil Nadal. Dodal ale, \u017ee se ji\u017e vyv\u00edj\u00ed pokro\u010dilej\u0161\u00ed bionick\u00e1 oka, kter\u00e1 v brzk\u00e9 budoucnosti umo\u017en\u00ed lidem nap\u0159\u00edklad rozli\u0161ovat barvy.<\/p>\n

Tento typ bionick\u00e9ho oka je ur\u010den lidem s chorobou s\u00edtnice naz\u00fdvanou retinitis pigmentosa, p\u0159i n\u00ed\u017e se postupn\u011b rozpad\u00e1 s\u00edtnice, \u010d\u00edm\u017e se zhor\u0161uje zrak a\u017e ke slepot\u011b.<\/p>\n

Pacienti na barcelonsk\u00e9 klinice dostali bionick\u00e9 oko Argus II, kter\u00e9 vyr\u00e1b\u00ed americk\u00e1 firma Second Sight. P\u0159\u00edstroj se skl\u00e1d\u00e1 z telekamery na br\u00fdl\u00edch, kter\u00e1 p\u0159ed\u00e1v\u00e1 radiov\u00fd sign\u00e1l receptoru a elektronick\u00e9mu za\u0159\u00edzen\u00ed um\u00edst\u011bn\u00e9mu na \u00farovni s\u00edtnice. Elektrody stimuluj\u00ed zb\u00fdvaj\u00edc\u00ed nervy s\u00edtnice a umo\u017e\u0148uj\u00ed tak, aby se sign\u00e1l dostal do mozku, kde je de\u0161ifrov\u00e1n.<\/p>\n

Na po\u010dtu elektrod pak z\u00e1vis\u00ed, jak bude obraz vypadat. P\u0159\u00edstroj Argus prvn\u00ed generace m\u011bl 16 elektrod, Argus II m\u00e1 60 elektrod. Bionick\u00e1 oka vyv\u00edjej\u00ed i dal\u0161\u00ed firmy, nap\u0159\u00edklad australsk\u00e1 Bionic Vision pracuje na p\u0159\u00edstroji s 256 stimuluj\u00edc\u00edmi elektrodami.<\/p>\n

Loni v prosinci magaz\u00edn New Scientist p\u0159inesl informaci, \u017ee Austr\u00e1lie chyst\u00e1 letos voperov\u00e1n\u00ed bionick\u00e9ho oka, kter\u00e9 se bude skl\u00e1dat z 11 mal\u00fdch desti\u010dek po 43 elektrod\u00e1ch. Podle Arthura Loweryho z Monashovy univerzity v Melbourne, kter\u00fd toto oko vyv\u00edj\u00ed, by jeho p\u0159\u00edstoj mohl poskytnout obraz v rozli\u0161en\u00ed asi 500 pixel\u016f. To je pr\u00fd dost na jednoduch\u00fd obraz, i kdy\u017e zdrav\u00e9 oko dok\u00e1\u017ee podle n\u011bj vytvo\u0159it obraz s rozli\u0161en\u00edm jeden a\u017e dva miliony pixel\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"

Dva nevidom\u00ed pacienti, jim\u017e loni v prosinci l\u00e9ka\u0159i ve \u0161pan\u011blsk\u00e9 Barcelon\u011b voperovali bionick\u00e9 oko, ji\u017e vid\u00ed siluety a rozpozn\u00e1vaj\u00ed osoby. Informovala o tom klinika Barraquer […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":5904,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-24477","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdravi"],"_links":{"self":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/24477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24477"}],"version-history":[{"count":0,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/24477\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/media\/5904"}],"wp:attachment":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}