{"id":1581,"date":"2024-06-18T12:55:20","date_gmt":"2024-06-18T12:55:20","guid":{"rendered":"http:\/\/staging.livision-optika.com\/edukativni-centar\/bjeloocnica-sklera\/"},"modified":"2024-11-11T08:11:23","modified_gmt":"2024-11-11T08:11:23","slug":"bjeloocnica-sklera","status":"publish","type":"post","link":"https:\/\/livision-optika.com\/edukativni-centar\/bjeloocnica-sklera\/","title":{"rendered":"Bjeloo\u010dnica (sklera)"},"content":{"rendered":"<p><span style=\"font-weight: bold;\">Bjeloo\u010dnica ili sklera (<span style=\"font-style: italic;\">lat. sclera<\/span>) je bijela, neprozirna opna koja \u010dini ve\u0107i, stra\u017enji dio fibrozne ovojnice o\u010dne jabu\u010dice.<\/span> <\/p>\n<p>Ima oblik lopte presje\u010dene na prednjem kraju gdje se nalazi ro\u017enica te se nastavlja na nju i zajedno s njom formira cijelu o\u010dnu jabu\u010dicu. Osim tog otvora, na bjeloo\u010dnici se nalaze jo\u0161 manji otvori za prolaz \u017eivaca i krvnih \u017eila. Sklera nastaje zajedno s ro\u017enicom u drugom embrionalnom mjesecu, i u po\u010detku je prozirna kao i ro\u017enica. Bjeloo\u010dnica je avaskularna (nema krvnih \u017eila) te \u010dini 80% povr\u0161ine oka. Debljina skelre je razli\u010dita, ovisi o veli\u010dini <span style=\"font-style: italic;\">bullbusa<\/span> (hipermetropi imaju deblju, a miopi tanju skleru).<\/p>\n<p><span style=\"font-weight: bold;\">Debljina sklere:<\/span><\/p>\n<ul>\n<li>U podru\u010dju mi\u0161i\u0107a 0.3 mm<\/li>\n<li>U podru\u010dju opti\u010dkog \u017eivca 1 mm <\/li>\n<li>U podru\u010dju limbusa 0.8 mm<\/li>\n<\/ul>\n<p>\u010cvrsto\u0107a sklere odr\u017eava o\u010dnu jabu\u010dicu stabilnom.<\/p>\n<p><span style=\"font-weight: bold;\">Izvana prema unutra razlikujemo 3 sloja:<\/span><\/p>\n<ul>\n<li>Episklera<\/li>\n<li>Stroma<\/li>\n<li>Lamina fusca<\/li>\n<\/ul>\n<p>U bjeloo\u010dnici kod limbusa (granica izme\u0111u bjeloo\u010dnice i ro\u017enice) nalazi se Schlemmov kanal (<span style=\"font-style: italic;\">canalis Schlemmi<\/span>) koji slu\u017ei za otjecanje o\u010dne vodice. Schlemmov kanal zna\u010dajan je u reguliranju intraokolarnog tlaka. <\/p>\n<p>Funkcija bijeloo\u010dnije je o\u010duvanje o\u010dnog tlaka, tako\u0111er slu\u017ei kao hvati\u0161te za o\u010dne mi\u0161i\u0107e koji pokre\u0107u oko u svim smjerovima.<\/p>\n<p><span style=\"font-weight: bold;\">Upale bjeloo\u010dnica &#8211; sklera:<\/span><\/p>\n<ul>\n<li>Episkleritis<\/li>\n<li>Skleritis<\/li>\n<\/ul>\n<p>Autor:<br \/>bc. Livio Svr\u017enjak, optometrist<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bjeloo\u010dnica ili sklera (lat. sclera) je bijela, neprozirna opna koja \u010dini ve\u0107i, stra\u017enji dio fibrozne ovojnice o\u010dne jabu\u010dice. Ima oblik lopte presje\u010dene na prednjem kraju gdje se nalazi ro\u017enica te se nastavlja na nju i zajedno s njom formira cijelu o\u010dnu jabu\u010dicu. Osim tog otvora, na bjeloo\u010dnici se nalaze jo\u0161 manji otvori za prolaz \u017eivaca [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2669,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-1581","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anatomija-oka"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bjeloo\u010dnica (sklera)<\/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:\/\/livision-optika.com\/edukativni-centar\/bjeloocnica-sklera\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bjeloo\u010dnica (sklera)\" \/>\n<meta property=\"og:description\" content=\"Bjeloo\u010dnica ili sklera (lat. sclera) je bijela, neprozirna opna koja \u010dini ve\u0107i, stra\u017enji dio fibrozne ovojnice o\u010dne jabu\u010dice. 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