Breakthrough Technique Prevents Vision Problems in Astronauts

NASA researchers have developed a technique that can prevent vision problems in astronauts caused by a buildup of pressure in cerebrospinal fluid, which can occur during lengthy missions in microgravity. The study involved applying a microneedle to the eyes of mice to drain the fluid and relieve pressure, resulting in cleared vision. The technique could help astronauts avoid permanent eye damage and return to Earth with good eyesight. The study also has implications for patients with conditions such as hydrocephalus, where fluid buildup can cause pressure in the brain.