Brief by Shorts91 Newsdesk / 01:15pm on 21 Jul 2025,Monday Science
NASA is investigating alarming vision problems reported by astronauts after long missions aboard the International Space Station. Many astronauts returning from space have experienced worsened eyesight, requiring stronger reading glasses. Medical exams revealed optic disc swelling and eyeball flattening, linked to fluid shifts caused by prolonged zero gravity. The condition, now termed Space-Associated Neuro-Ocular Syndrome (SANS), poses a significant challenge for future long-duration missions, including Mars exploration. NASA is collecting extensive data to develop countermeasures. Experts warn these eye issues highlight the broader health risks astronauts face during extended stays in space’s harsh, weightless environment. (PC: India Today)
