NASA Research: Astronauts’ Vision at Risk
The knowledge and discoveries that we have today, we owe it to our astronauts or men of space who are considered to be heroes for giving their lives for the sake of science.
Lately its was found out by NASA researchers that astronauts who spend six months or more in outer space have the possibility to experience blurry vision as a result of prolonged exposure to microgravity, thus will greatly affect trips to Mars and other long-term space voyages.
Further, in a recent study published in the journal Ophthalmology, scientists examined seven astronauts of about 50 years of age who spent more than six months in space. Results revealed that all of them experienced blurry vision while on the space station and continued long after they’re back here on Earth. Likewise, researchers discovered that they had at least one transformation in their tissues, fluids, nerves and other structures found at the back of their eye.
Thus, researchers concluded that only astronauts who spent more than six months in the outer space are more likely to experience blurry vision which is caused by microgravity. Currently, NASA has acknowledged this problem and provides their astronauts special “space anticipation glasses” and sees to it that they undergo complete eye exams and vision testing.