Station Astronauts Begin Studying Troubling Vision Issue

Duh, on earth gravity "pulls" the airball fluid toward the lower portions of the ear so the fluid-wall pressure is higher there, while in space the fluid "floats" central in the eye, exterting pressure on ALL the eye surface, which is beyond what the eye is accustomed to experiencing!

MORAL - 'Mother Nature' has had millions of years of experience with gravity here on Earth, but only 40+ years of non-gravity up there in Space!

It's not just the astronauts. ALL of NASA seems to have a vision problem.