Astronauts who return from long trips in space often return with vision loss, and now researchers think they know why.

How Long Could You Survive In Outer Space?    • How Long Could You Survive In Outer S...  
Sign Up For The Seeker Newsletter Here http://bit.ly/1UO1PxI'>http://bit.ly/1UO1PxI

Read More:

New Findings on Astronaut Vision Loss
https://www.nasa.gov/mission_pages/st...
"Could vision changes experienced by astronauts be linked to a vitamin B12 or folate deficiency? While investigating the vision changes recently identified in astronauts, nutritional assessment data showed similarities to symptoms that occur with vitamin deficiencies, according to a new study published in the March edition of The Journal of Nutrition."

Space could leave you blind, and scientists say they've finally figured out why
http://www.sciencealert.com/wefinall...
"A mysterious syndrome has been impairing astronauts' vision on the International Space Station, causing untreatable nearsightedness that lingers for months even after they've returned to Earth."

Astronaut vision may be impaired by spinal fluid changes: study
http://phys.org/news/201611astronau...
"Astronauts may experience blurry vision and impaired eyesight after long spaceflights due to changes in spinal fluid that occur while in microgravity, researchers said Monday. Nearly twothirds of astronauts have reported problems with their eyes after spending months at the International Space Station, according to research presented at the annual meeting of the Radiological Society of North America (RSNA)."

____________________

DNews is dedicated to satisfying your curiosity and to bringing you mindbending stories & perspectives you won't find anywhere else! New videos daily.

Watch More DNews on Seeker http://www.seeker.com/show/dnews/'>http://www.seeker.com/show/dnews/

Subscribe now! http://www.youtube.com/subscription_c...

Seeker on Twitter   / seeker  

Trace Dominguez on Twitter   / tracedominguez  

DNews on Facebook   / discoverynews  

DNews on Google+ https://plus.google.com/u/0/+dnews

Seeker http://www.seeker.com/

Sign Up For The Seeker Newsletter Here: http://bit.ly/1UO1PxI'>http://bit.ly/1UO1PxI

Special thanks to Julian Huguet for hosting DNews!
Check Julian out on Twitter:   / jhug00  

Written by: Chante Owens and Julian Huguet