{"id":104603,"date":"2026-04-15T06:31:39","date_gmt":"2026-04-15T04:31:39","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=104603"},"modified":"2026-04-15T06:31:39","modified_gmt":"2026-04-15T04:31:39","slug":"5-zivin-ktere-vam-zlepsi-zrak-ve-svete-ovladanem-obrazovkami","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2026\/04\/15\/5-zivin-ktere-vam-zlepsi-zrak-ve-svete-ovladanem-obrazovkami\/","title":{"rendered":"5 \u017eivin, kter\u00e9 v\u00e1m zlep\u0161\u00ed zrak ve sv\u011bt\u011b ovl\u00e1dan\u00e9m obrazovkami"},"content":{"rendered":"
<\/div>\n

Pr\u016fm\u011brn\u00fd kancel\u00e1\u0159sk\u00fd pracovn\u00edk v sou\u010dasnosti tr\u00e1v\u00ed v\u00edce ne\u017e \u0161est hodin denn\u011b d\u00edv\u00e1n\u00edm se na z\u00e1\u0159\u00edc\u00ed obd\u00e9ln\u00edky.<\/span><\/strong><\/p>\n

Dlouhodob\u00e9 vystaven\u00ed obrazovk\u00e1m potla\u010duje frekvenci mrk\u00e1n\u00ed a\u017e o 66%, urychluje oxida\u010dn\u00ed stres v makule a vyvol\u00e1v\u00e1 mozkovou \u00fanavu, kter\u00e1 p\u0159etrv\u00e1v\u00e1 dlouho po vypnut\u00ed po\u010d\u00edta\u010d\u016f a telefon\u016f.<\/span><\/p>\n

Zat\u00edmco technologick\u00ed giganti vyv\u00edjej\u00ed st\u00e1le jasn\u011bj\u0161\u00ed displeje vyza\u0159uj\u00edc\u00ed modr\u00e9 sv\u011btlo, rostouc\u00ed po\u010det recenzovan\u00fdch v\u00fdzkum\u016f poukazuje na p\u011bt specifick\u00fdch \u017eivin, kter\u00e9 mohou pomoci ochr\u00e1nit a dokonce zlep\u0161it zrak.<\/span><\/p>\n

Betakaroten (ve sladk\u00fdch brambor\u00e1ch \u010di mrkvi), lutein (v kapust\u011b a jin\u00e9 listov\u00e9 zelenin\u011b), zeaxanthin (ve spirulin\u011b), antokyany (v bor\u016fvk\u00e1ch) a omega-3 mastn\u00e9 kyseliny (ve ln\u011bn\u00fdch sem\u00ednk\u00e1ch) jsou \u00fa\u010dinnou obranou proti t\u00e9to tich\u00e9 epidemi.<\/span><\/p>\n

1. Lutein a zeaxanthin<\/span><\/h2>\n

Lutein a zeaxantin nejsou jen n\u011bjak\u00e9 n\u00e1hodn\u00e9 antioxidanty, ale jsou to makul\u00e1rn\u00ed \u0161t\u00edty, kter\u00e9 by m\u011bli o\u010dn\u00ed l\u00e9ka\u0159i za\u010d\u00edt doporu\u010dovat sv\u00fdm pacient\u016fm. Selektivn\u011b se hromad\u00ed v makule, oblasti s\u00edtnice zodpov\u011bdn\u00e9 za ostr\u00e9 centr\u00e1ln\u00ed vid\u011bn\u00ed.<\/span><\/p>\n

V\u00fdzkumn\u00edci je z n\u011bjak\u00e9ho d\u016fvodu naz\u00fdvaj\u00ed makul\u00e1rn\u00ed pigment. Jejich \u00fakolem je absorbovat vysokoenergetick\u00e9 modr\u00e9 sv\u011btlo d\u0159\u00edve, ne\u017e m\u016f\u017ee spustit tvorbu voln\u00fdch radik\u00e1l\u016f ve fotoreceptorov\u00fdch bu\u0148k\u00e1ch.<\/span><\/p>\n

Randomizovan\u00e1, dvojit\u011b zaslepen\u00e1, placebem kontrolovan\u00e1 studie z roku 2025, publikovan\u00e1 v \u010dasopise\u00a0<\/span>Frontiers in Nutrition<\/span><\/em>\u00a0, sledovala 70 dosp\u011bl\u00fdch, kte\u0159\u00ed pou\u017e\u00edvali elektronick\u00e9 obrazovky v\u00edce ne\u017e \u0161est hodin denn\u011b.<\/span><\/p>\n

B\u011bhem \u0161esti m\u011bs\u00edc\u016f ti, kte\u0159\u00ed dost\u00e1vali 10 miligram\u016f luteinu a 2 miligramy izomer\u016f zeaxantinu, prok\u00e1zali statisticky v\u00fdznamn\u00e9 zlep\u0161en\u00ed v\u00fdsledk\u016f Schirmerova slzn\u00e9ho testu, tedy \u010dasu zotaven\u00ed po fotostresu a \u010dasu rozpadu slzn\u00e9ho filmu ve srovn\u00e1n\u00ed s placebem.<\/span><\/p>\n

Auto\u0159i studie napsali, \u017ee suplementace byla \u201edob\u0159e tolerov\u00e1na, bez hl\u00e1\u0161en\u00ed o z\u00e1va\u017en\u00fdch ne\u017e\u00e1douc\u00edch reakc\u00edch\u201c.<\/span><\/p>\n

Stejn\u00e1 studie v\u0161ak nezjistila \u017e\u00e1dn\u00e9 rozd\u00edly mezi skupinami v subjektivn\u011b hl\u00e1\u0161en\u00e9 zrakov\u00e9 \u00fanav\u011b, co\u017e nazna\u010duje, \u017ee to, co pacienti c\u00edt\u00ed, se ne v\u017edy shoduje s t\u00edm, co odhaluj\u00ed klinick\u00e1 m\u011b\u0159en\u00ed.<\/span><\/p>\n

Kde se tyto slou\u010deniny nach\u00e1zej\u00ed? Na \u010dele seznamu je tmav\u00e1 listov\u00e1 zelenina jako kapusta a \u0161pen\u00e1t, ale i vaje\u010dn\u00e9 \u017eloutky nab\u00edzej\u00ed vynikaj\u00edc\u00ed biologickou dostupnost luteinu a zeaxantinu sv\u00e9 d\u00edky tukov\u00e9 matrici.<\/span><\/p>\n

Pro ty, kte\u0159\u00ed nejsou ochotni j\u00edst kilogramy ovoce a zeleniny denn\u011b, p\u0159edstavuje spirulina p\u0159esv\u011bd\u010divou alternativu. Studie na lidech s pou\u017eit\u00edm spiruliny ozna\u010dovan\u00e9 deuteriem prok\u00e1zala, \u017ee jedna 4 a\u017e 5 gramov\u00e1 porce obsahuj\u00edc\u00ed 2,6 a\u017e 3,7 miligram\u016f zeaxantinu zv\u00fd\u0161ila pr\u016fm\u011brnou koncentraci zeaxantinu v s\u00e9ru z 0,06 na 0,15 mikromol\u016f na litr.<\/span><\/p>\n

Ozna\u010dkovan\u00fd zeaxantin z\u016fstal v krevn\u00edm ob\u011bhu detekovateln\u00fd a\u017e 45 dn\u00ed po po\u017eit\u00ed. V\u00fdzkumn\u00edci do\u0161li k z\u00e1v\u011bru, \u017ee \u201espirulina m\u016f\u017ee slou\u017eit jako bohat\u00fd zdroj zeaxantinu z potravy pro lidi.\u201c<\/span><\/p>\n

2. Omega-3 mastn\u00e9 kyseliny<\/span><\/h2>\n

Syndrom such\u00e9ho oka u u\u017eivatel\u016f obrazovek nen\u00ed prim\u00e1rn\u011b probl\u00e9mem s lubrikac\u00ed. Je to neurologick\u00fd a z\u00e1n\u011btliv\u00fd probl\u00e9m.<\/span><\/p>\n

Sn\u00ed\u017een\u00e9 mrk\u00e1n\u00ed b\u011bhem \u010dasu str\u00e1ven\u00e9ho p\u0159ed obrazovkou naru\u0161uje funkci meibomsk\u00fdch \u017el\u00e1z (okrajov\u00e9 mazov\u00e9 \u017el\u00e1zy v\u00ed\u010dek produkuj\u00edc\u00ed lipidovou vrstvu), zat\u00edmco vystaven\u00ed modr\u00e9mu sv\u011btlu podporuje oxida\u010dn\u00ed po\u0161kozen\u00ed epitelu rohovky.<\/span><\/p>\n

Omega-3 mastn\u00e9 kyseliny, konkr\u00e9tn\u011b DHA a EPA, p\u016fsob\u00ed na ob\u011b dr\u00e1hy. DHA tvo\u0159\u00ed 30% a\u017e 50% fosfolipid\u016f s\u00edtnice a podporuje stabilitu slzn\u00e9ho filmu. EPA pom\u00e1h\u00e1 \u0159e\u0161it m\u00edrn\u00fd z\u00e1n\u011bt.<\/span><\/p>\n

Mastn\u00e9 ryby jako losos a sardinky z\u016fst\u00e1vaj\u00ed zlat\u00fdm standardem, ale i vla\u0161sk\u00e9 o\u0159echy a\u00a0<\/span>ln\u011bn\u00e1 sem\u00ednka<\/span><\/a>\u00a0poskytuj\u00ed rostlinn\u00e9 alternativy omega-3 kyselin pro ty, kte\u0159\u00ed se vyh\u00fdbaj\u00ed \u017eivo\u010di\u0161n\u00fdm produkt\u016fm.<\/span><\/p>\n

3. Bor\u016fvky<\/span><\/h2>\n

Bor\u016fvky p\u0159it\u00e1hly klinickou pozornost pro sv\u00e9 \u00fa\u010dinky na funkci cili\u00e1rn\u00edho svalu, co\u017e je sval ve st\u0159edn\u00ed vrstv\u011b oka m\u011bn\u00edc\u00ed tvar \u010do\u010dky.<\/span><\/p>\n

12-t\u00fddenn\u00ed randomizovan\u00e1, dvojit\u011b zaslepen\u00e1, placebem kontrolovan\u00e1 studie publikovan\u00e1 v \u010dasopise\u00a0<\/span>Nutrients<\/span><\/em>\u00a0zkoumala 109 zdrav\u00fdch dosp\u011bl\u00fdch, kte\u0159\u00ed denn\u011b dost\u00e1vali bu\u010f 240 miligram\u016f standardizovan\u00e9ho extraktu z bor\u016fvek, nebo placebo.<\/span><\/p>\n

Prim\u00e1rn\u00edm v\u00fdsledkem byly hodnoty vysokofrekven\u010dn\u00edch slo\u017eek (HFC-1) p\u0159ed a po \u00faloh\u00e1ch vizu\u00e1ln\u00edho zobrazen\u00ed na konci \u00falohy. V 8. a 12. t\u00fddnu skupina u\u017e\u00edvaj\u00edc\u00ed bor\u016fvky vykazovala v\u00fdrazn\u011b zlep\u0161en\u00e9 hodnoty HFC-1 ve srovn\u00e1n\u00ed s placebo skupinou.<\/span><\/p>\n

Auto\u0159i poznamenali, \u017ee \u201eperor\u00e1ln\u00ed konzumace 240 mg extraktu SBE z bor\u016fvek po dobu 12 t\u00fddn\u016f zm\u00edr\u0148uje tonickou akomodaci cili\u00e1rn\u00edho svalu.\u201c Zjednodu\u0161en\u011b \u0159e\u010deno, bor\u016fvka pom\u00e1h\u00e1 uvolnit zaost\u0159ovac\u00ed sval oka po hodin\u00e1ch pr\u00e1ce zbl\u00edzka.<\/span><\/p>\n

4. a 5. Betakaroten a vitamin A<\/span><\/h2>\n

Betakaroten a Vitamin A dopl\u0148uj\u00ed tento seznam \u017eivin pro zdrav\u00ed o\u010d\u00ed. Betakaroten z mrkve, sladk\u00fdch brambor a d\u00fdn\u011b p\u016fsob\u00ed jako prekurzor vitam\u00ednu A, kter\u00fd udr\u017euje integritu rohovky a podporuje vid\u011bn\u00ed p\u0159i slab\u00e9m osv\u011btlen\u00ed.<\/span><\/p>\n

Bez luteinu, zeaxantinu a omega-3 mastn\u00fdch kyselin jako z\u00e1kladu v\u0161ak samotn\u00fd vitam\u00edn A nedok\u00e1\u017ee kompenzovat chronick\u00e9 vystaven\u00ed modr\u00e9mu sv\u011btlu.<\/span><\/p>\n

Existuj\u00ed p\u0159\u00edrodn\u00ed \u0159e\u0161en\u00ed pro sou\u010dasnou epidemii nam\u00e1h\u00e1n\u00ed o\u010d\u00ed. Zlep\u0161en\u00ed zdrav\u00ed o\u010d\u00ed vy\u017eaduje, aby krevn\u00ed ob\u011bh a bun\u011b\u010dn\u00e9 mechanismy t\u011bla absorbovaly betakaroten, omega-3 mastn\u00e9 kyseliny a antokyany, lutein a zeaxantin, kter\u00e9 se nach\u00e1zej\u00ed v p\u0159\u00edrodn\u00edch superpotravin\u00e1ch.<\/span><\/p>\n

Z\u00e1v\u011br<\/span><\/h2>\n

P\u0159\u00edrodn\u00edmu zp\u016fsobu na zlep\u0161en\u00ed zraku se podrobn\u011b v\u011bnujeme v samostatn\u00e9 elektronick\u00e9 knize. V\u00edce informac\u00ed o n\u00ed naleznete\u00a0\u00a0<\/span>ZDE<\/span><\/strong><\/a>\u00a0\u00a0(o jej\u00ed \u010desk\u00e9 verzi\u00a0\u00a0<\/span>ZDE<\/span><\/strong><\/a>\u00a0).<\/span><\/p>\n

V e-knize se dozv\u00edte o 11 v\u00e1\u017en\u00fdch rizic\u00edch laserov\u00fdch operac\u00ed o\u010d\u00ed, jak zlep\u0161it ostrost vid\u011bn\u00ed p\u0159i kr\u00e1tkozrakosti i dalekozrakosti, jak se zbavit slzen\u00ed a \u00fanavy o\u010d\u00ed, pro\u010d br\u00fdle i \u010do\u010dky zraku v\u00edce \u0161kod\u00ed ne\u017e pom\u00e1haj\u00ed, pro\u010d slune\u010dn\u00ed br\u00fdle po\u0161kod\u00ed o\u010di, dopl\u0148ky stravy zlep\u0161uj\u00ed zrak a \u0159adu dal\u0161\u00edch u\u017eite\u010dn\u00fdch informac\u00ed.<\/span><\/p>\n

Autor: Lance D. Johnson, Zdroj:\u00a0<\/span>naturalnews.com<\/span><\/a>\u00a0<\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Pr\u016fm\u011brn\u00fd kancel\u00e1\u0159sk\u00fd pracovn\u00edk v sou\u010dasnosti tr\u00e1v\u00ed v\u00edce ne\u017e \u0161est hodin denn\u011b d\u00edv\u00e1n\u00edm se na z\u00e1\u0159\u00edc\u00ed…<\/p>\n","protected":false},"author":2,"featured_media":104604,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[750,8249,8673],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/104603"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=104603"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/104603\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/104604"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=104603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=104603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=104603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}