{"id":493,"date":"2014-11-04T08:58:00","date_gmt":"2014-11-04T07:58:00","guid":{"rendered":"https:\/\/kids.esa.int\/eye-catching_space_technology_restoring_sight\/"},"modified":"2026-10-08T00:28:50","modified_gmt":"2026-10-07T22:28:50","slug":"eye-catching_space_technology_restoring_sight","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/eye-catching_space_technology_restoring_sight\/","title":{"rendered":"I\u00f6gonfallande rymdteknik som \u00e5terst\u00e4ller synen"},"content":{"rendered":"
\n

Miljontals m\u00e4nniskor v\u00e4rlden \u00f6ver har genomg\u00e5tt laseroperationer f\u00f6r att korrigera sin syn, men visste du att denna operation endast \u00e4r m\u00f6jlig tack vare teknik som utvecklats f\u00f6r anv\u00e4ndning i rymden?<\/p>\n<\/div>\n

Om du tittar p\u00e5 en fast punkt samtidigt som du lutar eller skakar p\u00e5 huvudet, h\u00e5ller \u00f6gonen automatiskt blicken stilla, vilket g\u00f6r att du kan se klart \u00e4ven n\u00e4r du r\u00f6r dig. De flesta arter p\u00e5 jorden har denna f\u00f6rm\u00e5ga, \u00e4nda tillbaka till dinosauriernas tid. Det \u00e4r ett h\u00e4ftigt knep fr\u00e5n naturen som vi inte ens t\u00e4nker p\u00e5.<\/p>\n

Bakom kulisserna tar din hj\u00e4rna hela tiden emot signaler fr\u00e5n inner\u00f6rat. Dessa signaler talar om f\u00f6r dig vilken riktning som \u00e4r vilken, vilket hj\u00e4lper dig att h\u00e5lla balansen och se klart. Detta \u00e4r m\u00f6jligt tack vare tyngdkraften, som talar om f\u00f6r oss vilket h\u00e5ll som \u00e4r ned\u00e5t.<\/p>\n

Men hur klarar sig astronauterna i rymden d\u00e4r det inte finns n\u00e5gon tyngdkraft? Hur kan deras \u00f6gon fokusera p\u00e5 en datorsk\u00e4rm n\u00e4r de sv\u00e4var omkring p\u00e5 den internationella rymdstationen?<\/p>\n

\"\"<\/figure>\n

F\u00f6r att unders\u00f6ka detta fenomen utvecklade forskarna ett speciellt instrument f\u00f6r att m\u00e4ta astronauternas \u00f6gonr\u00f6relser utan att st\u00f6ra dem. Instrumentet kallas \u2019Eye Tracking Device\u2019. Det \u00e4r i princip en hj\u00e4lm med en kamera som tar bilder av astronauternas \u00f6gon och registrerar vart de tittar.<\/p>\n

H\u00e4r p\u00e5 jorden har just den h\u00e4r \u00f6gonsp\u00e5rningsenheten gett l\u00e4kare m\u00f6jlighet att utf\u00f6ra komplicerade laseroperationer p\u00e5 \u00f6gonen, vilket har f\u00f6rb\u00e4ttrat livet f\u00f6r miljontals m\u00e4nniskor!<\/p>\n

Rolig fakta:<\/b> Rymdtekniken har p\u00e5verkat v\u00e5rt dagliga liv p\u00e5 otaliga s\u00e4tt. Vissa p\u00e5 ett stort s\u00e4tt, som m\u00f6jligheten att skicka information \u00f6ver hela v\u00e4rlden p\u00e5 n\u00e5gra sekunder och utvecklingen av proteser. Andra p\u00e5 ett mindre s\u00e4tt, som bekv\u00e4ma innersulor till v\u00e5ra skor och madrasser av minnesskum.<\/p>","protected":false},"excerpt":{"rendered":"

Millions of people around the world have had laser surgery to correct their eyesight, but did you know this surgery is only possible thanks to technology developed for use in […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2014\/11\/human_eye2\/17874038-2-eng-GB\/Human_eye.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/11\/Human_eye2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-493","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=493"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/493\/revisions"}],"predecessor-version":[{"id":4514,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/493\/revisions\/4514"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=493"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=493"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=493"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=493"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=493"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=493"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=493"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}