{"id":801963,"date":"2026-04-28T04:39:28","date_gmt":"2026-04-28T09:39:28","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=801963"},"modified":"2026-04-28T04:39:28","modified_gmt":"2026-04-28T09:39:28","slug":"investigating-vision-changes-in-spaceflight","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=801963","title":{"rendered":"Investigating Vision Changes in Spaceflight"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div id=\"modal__tab-content--details\">\n<div class=\"modal__tab-description\">\n<p>This picture is one of a set published by ESA astronaut Sophie Adenot on social media with the following caption:<\/p>\n<p>Day 070, orbit 1085 \u2014 In microgravity, astronauts\u2019 eyes can be affected because fluids in the body\u00a0shift upward, changing the pressure around and inside the eyes. This is known as Spaceflight\u2011Associated Neuro\u2011Ocular Syndrome (SANS) and it can lead to farsightedness and changes in visual sharpness.To keep a close eye on this, we undergo regular vision checks throughout the mission.<\/p>\n<p>These involve several tests, including an OCT &#8211; Optical Coherence Tomography. OCT takes detailed images of the back of the eye, including the retina, which are sent to our flight surgeons to monitor how our eyes respond to living in microgravity!<\/p>\n<p>Changes related to the SANS syndrome are usually reversible after our return to 1g gravity. However, the lessons learned by monitoring astronaut\u2019s eyes in microgravity help doctors on Earth better understand how pressure and fluid shifts affect vision, and how to protect something as precious as our eyesight.<\/p>\n<p>&#8212;<\/p>\n<p>Jour 070, orbite 1085 \u2013 Les yeux des astronautes peuvent \u00eatre affect\u00e9s en micropesanteur car les fluides du corps ont tendance \u00e0 remonter vers la t\u00eate, modifiant la pression autour et \u00e0 l\u2019int\u00e9rieur des yeux. Ce ph\u00e9nom\u00e8ne est connu sous le nom de syndrome neuro\u2011oculaire associ\u00e9 aux vols spatiaux (SANS) et il peut entra\u00eener une hyperm\u00e9tropie ainsi que des changements de l\u2019acuit\u00e9 visuelle.Pour garder un \u0153il attentif l\u00e0-dessus, nous r\u00e9alisons des examens de la vision r\u00e9guliers tout au long de la mission.<\/p>\n<p>Ceux\u2011ci comprennent plusieurs tests, dont la tomographie en coh\u00e9rence optique, ou OCT, qui permet d\u2019obtenir des images tr\u00e8s d\u00e9taill\u00e9es de l\u2019arri\u00e8re de l\u2019\u0153il, notamment de la r\u00e9tine. Ces images sont transmises \u00e0 nos m\u00e9decins de vol afin de suivre la mani\u00e8re dont nos yeux r\u00e9agissent \u00e0 la vie en micropesanteur\u202f!<\/p>\n<p>Les changements li\u00e9s au SANS sont g\u00e9n\u00e9ralement r\u00e9versibles apr\u00e8s notre retour \u00e0 une gravit\u00e9 de 1\u202fg. N\u00e9anmoins, les enseignements tir\u00e9s de la surveillance des yeux des astronautes en micropesanteur aident les m\u00e9decins sur Terre \u00e0 mieux comprendre comment les variations de pression et la redistribution des fluides affectent la vision \u2013 et comment prot\u00e9ger quelque chose d\u2019aussi pr\u00e9cieux que notre vue.<\/p>\n<p>Date: 17-04-2026<\/p>\n<p>iss074e0433178<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2026\/04\/Investigating_Vision_Changes_in_Spaceflight2?rand=772187\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This picture is one of a set published by ESA astronaut Sophie Adenot on social media with the following caption: Day 070, orbit 1085 \u2014 In microgravity, astronauts\u2019 eyes can&hellip; <\/p>\n","protected":false},"author":1,"featured_media":801964,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-801963","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-multimedia"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/801963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=801963"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/801963\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/801964"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=801963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=801963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=801963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}