{"id":21024145,"date":"2015-01-05T18:29:32","date_gmt":"2015-01-05T17:29:32","guid":{"rendered":"http:\/\/znanost.geek.hr\/?p=21024145"},"modified":"2020-10-15T14:50:37","modified_gmt":"2020-10-15T12:50:37","slug":"sto-nam-pluta-u-oku","status":"publish","type":"post","link":"https:\/\/geek.hr\/znanost\/clanak\/sto-nam-pluta-u-oku\/","title":{"rendered":"\u0160to nam pluta u oku?"},"content":{"rendered":"<div id=\"attachment_21024148\" style=\"width: 610px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-21024148\" class=\"size-full wp-image-21024148\" src=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/anatomija-oka.jpg\" alt=\"Dijelovi oka (Image credits: lcl - optika.hr)\" width=\"600\" height=\"400\" srcset=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/anatomija-oka.jpg 600w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/anatomija-oka-300x200.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><p id=\"caption-attachment-21024148\" class=\"wp-caption-text\">Dijelovi oka (Image credits: lcl &#8211; optika.hr)<\/p><\/div>\n<p>Jeste li ikad primijetili male \u010dudne crvolike mrlje koje se kre\u0107u va\u0161im vidnim poljem? Te dosadne male neravne linije ili &#8220;pau\u010dine&#8221; nazvane su plovcima i iskusilo ih je oko 70% ljudi. \u0160to su plovci?<\/p>\n<p>Plovci su zapravo sjene objekata koji se nalaze u jasnoj \u017eele tvari koja \u010dini ve\u0107inu unutra\u0161njosti oka. Ta tvar zove se staklasto tijelo ili staklasta teku\u0107ina i poma\u017ee oku pri zadr\u017eavanju okruglog oblika. Nakon \u0161to prije\u0111e le\u0107u oka, svjetlost mora pro\u0107i i kroz staklasto tijelo kako bi do\u0161lo do mre\u017enice u stra\u017enjem dijelu oka. Ve\u0107inom se sastoji od vode, no sadr\u017ei i proteine i mnoge druge supstancije.<\/p>\n<p>Plovci su ve\u0107inom \u010disti proteini staklastog tijela koji su se spojili. Ti strunasti sve\u017enjevi proteina blokiraju svjetlost i prema tome bacaju sjenu na mre\u017enicu. Plovci naj\u010de\u0161\u0107e imaju oblik krugova ili punoglavaca i trajno ostaju u oku.<\/p>\n<div id=\"attachment_21024149\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/oko.jpg\"><img decoding=\"async\" aria-describedby=\"caption-attachment-21024149\" class=\"size-full wp-image-21024149\" src=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/oko.jpg\" alt=\"Plovci (eng. floaters) (Image credits: Andrew Enright)\" width=\"640\" height=\"425\" srcset=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/oko.jpg 640w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2014\/12\/oko-300x199.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><p id=\"caption-attachment-21024149\" class=\"wp-caption-text\">Plovci (eng. floaters) (Image credits: Andrew Enright)<\/p><\/div>\n<p>Ponekad slaba krvarenja u oku mogu uzrokovati plovke jer crvena krvna zrnca ulaze u staklasto tijelo. To se mo\u017ee dogoditi kad tijelo izvu\u010de krvne \u017eilice iz mre\u017enice. Takvi plovci sli\u010dni su dimu i nestaju kako se krv apsorbira.<\/p>\n<p>Tako\u0111er, plovci mogu biti uzrokovani smanjenjem teku\u0107ine u staklastom tijelu, \u0161to se odvija prirodno kako starimo. Plovci mogu nastati i odvajanjem teku\u0107ine od mre\u017enice, \u010dime nastaju ne\u010disto\u0107e koje mogu u\u0107i u teku\u0107inu i postati plovci. Takvi plovci naj\u010de\u0161\u0107e sli\u010de pau\u010dini.<\/p>\n<p>Plovci se izrazito dobro vide kad gledamo ne\u0161to jak0 svijetlo, poput bijelog papira ili plavog neba. Primjetit \u0107ete da se plovci pomi\u010du zajedno s va\u0161im o\u010dima i da se pove\u0107avaju kad ih poku\u0161ate direktno pogledati.<\/p>\n<p>Plovci su ve\u0107inom samo gnjavatori na koje se naviknemo, no ponekad mogu zakloniti vidno polje, zbog \u010dega je potrebna operacija. Taj postupak uklju\u010duje odstranjivanje teku\u0107ine staklastog tijela i zamjenjivanje iste slanom otopinom.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jeste li ikad primijetili male \u010dudne crvolike mrlje koje se kre\u0107u va\u0161im vidnim poljem? Te dosadne male neravne linije ili &#8220;pau\u010dine&#8221; nazvane su plovcima i iskusilo ih je oko 70% ljudi. \u0160to su plovci? Plovci su zapravo sjene objekata koji se nalaze u jasnoj \u017eele tvari koja \u010dini ve\u0107inu unutra\u0161njosti oka. Ta tvar zove se [&hellip;]<\/p>\n","protected":false},"author":10022,"featured_media":21024149,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[16326],"tags":[17249],"class_list":["post-21024145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biologija","tag-oci"],"modified_by":null,"_links":{"self":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts\/21024145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/users\/10022"}],"replies":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/comments?post=21024145"}],"version-history":[{"count":0,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts\/21024145\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/media\/21024149"}],"wp:attachment":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/media?parent=21024145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/categories?post=21024145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/tags?post=21024145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}