When astronauts began spending six months and more aboard the International Space Station, they started to notice changes in ...

The processing of optical information in the retina of the eye, where the light-sensitive photoreceptors and the first nerve ...

Read NASA astronaut Jonny Kim, assisted by JAXA astronaut Takuya Onishi, performs an eye ultrasound on the International ...

Nerve cells, blood vessels in eye 'talk' to prevent disease. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2015 / 04 / 150427163640.htm. Scripps Research Institute.

How Ebola Virus Uses the Optic Nerve to Attack Eye, Leaving a Distinctive Scar. Published May 17, 2017 at 3:37 PM EDT Updated May 25, 2017 at 7:16 AM EDT.

Many neurodegenerative conditions, from glaucoma to Alzheimer's disease, are characterized by injury to axons -- the long, slender projections that conduct electrical impulses from one nerve cell to ...

The trochlear nerve, also known as cranial nerve 4 (CN IV), controls the superior oblique muscle in your eye. This muscle allows you to move your eyeball down and shift your gaze from side to side.

An optic nerve that has an injury cannot be fixed, so usually, if there is vision loss from ischemic optic neuropathy, it is permanent. Those with badly damaged optic nerves usually can still see ...

But transplanting the whole eye — the eyeball, its blood supply and the critical optic nerve that must connect it to the brain — is considered a moonshot in the quest to cure blindness.