Polaris Dawn is a planned private space mission from SpaceX that may be launched as early as March of 2023. The four astronauts training for the mission are pictured above, but if you look long enough, you'll see that their left eyes do not match their right eyes. It's not Photoshop; those are contact lenses, developed for a specific science reason.
The University of Colorado has been studying a condition called spaceflight associated neuro-ocular syndrome (SANS). That's when people who spend time in space experience swollen optic nerves and changes in the eye's shape. These hi-tech contact lenses equipped with micro-sensors will measure the changes in the eye as space flight proceeds. It is hoped that the data will test the theory that shifting fluid is responsible for SANS.
Eye will be back…for research. Polaris Dawn will carry with us on our mission 38 experiments from 23 partner institutions, including this device that measures intraocular pressure through a contact lens. See https://t.co/VHKqpel7BB for more! pic.twitter.com/QBGqziW4Ij
— Anna Menon (@annawmenon) October 24, 2022
-via Damn Interesting
(Image credit: Polaris Dawn)