Space & Astronomy

New findings on astronaut vision loss

By T.K. Randall
May 30, 2012 ·  3 comments

Image Credit: NASA New research in to the mysterious loss of eyesight reported by some astronauts has revealed that the problem could be related to a Vitamin B-12 or folate deficiency. 20 percent of astronauts who have spent time aboard the Internal Space Station have reported at least some level of eyesight change following their stint in space.

Scientists studying the phenomenon had suggested that an increase in intracranial pressure due to shifts in body fluids in a weightless environment could account for the symptoms, but a new nutritional assessment based on blood and urine samples taken before and after the astronauts' time in space has revealed that vitamin deficiency may be a more likely candidate.

Source: NASA | Comments (3)

Tags: