Imagine a future where cataract surgeries could be performed in space—this is no longer just a science fiction dream but an emerging area of groundbreaking research. But here's where it gets truly fascinating: scientists are now exploring how the very lenses we use to correct vision might behave beyond our planet. This intriguing possibility could reshape how we think about eye care and medical procedures in space, with some results already raising eyebrows.
A pioneering collaborative effort has brought together the John A. Moran Eye Center’s Intermountain Ocular Research Center (IORC) and a renowned cataract surgeon, Dr. Morgan Micheletti, to investigate how artificial intraocular lenses (IOLs) withstand the rigors of outer space. Their research could have significant implications, not only for future extraterrestrial missions but also for advancing cataract treatment on Earth.
In this innovative project, Dr. Micheletti teamed up with NASA and Space Center Houston’s materials testing programs to send a total of 135 different types of IOLs to the International Space Station (ISS). These lenses were positioned outside the spacecraft for a continuous six-month period using specially designed capsules, exposing them directly to the harsh conditions of space—conditions that include intense ultraviolet radiation, extreme temperature swings, and increased levels of atomic oxygen. These factors are far more severe than typical terrestrial environments and serve as a natural stress test for the lenses.
The project is part of a broader initiative called the Joint Assessment of Intraocular Lens Exposure in Space (JAMES), led by Dr. Micheletti. With over 10,000 surgeries performed at her practice—covering everything from standard cataract procedures to complex eye surgeries—she is passionate about pushing the boundaries of medical science.
"One of my ultimate goals is to perform the very first cataract surgery in space," Dr. Micheletti shared. "Cataract removal is the most common surgical procedure worldwide. As our ambitions for space exploration grow, I believe this type of surgery will eventually become routine beyond Earth as well."
Cataracts, primarily a result of aging, involve the clouding and hardening of the eye’s natural lens, which progressively impairs vision. The standard treatment involves removing the opaque lens and replacing it with a synthetic IOL. This research aims to answer crucial questions about how different IOL materials respond when exposed to space conditions and whether sterile implants can be effectively transported and stored for space missions.
Leading the analysis is Dr. Lilliana Werner, co-director of the IORC, a nonprofit laboratory dedicated to studying IOL design, materials, and possible complications. She expressed enthusiasm about the project’s uniqueness: "I’ve examined lenses from all over the world, but I’ve never worked with lenses from space—it’s so exciting!" Early findings from her analysis, conducted at her lab and the Nanofab Electron Microscopy and Surface Analysis Lab at the University of Utah, have revealed some surprising types of damage—descriptions resembling cobblestones, bubble wrap, and burn scars.
"These damage patterns are unlike anything I’ve seen before on Earth," Dr. Werner explained. "They are specific to the space environment and do not occur under terrestrial conditions."
Interestingly, not all lenses showed signs of deterioration, which likely depends on factors such as their position on the ISS and how they were stored during exposure. Dr. Micheletti noted that the project has received financial backing from leading IOL manufacturers, and as research continues, further results will be published.
"Our primary goal is to understand how these materials behave when subjected to space conditions," he said. "In my lifetime, I believe someone will perform cataract surgery in space using these lenses. We need to figure out the best way to develop, send, and store them for extraterrestrial use."
This venture not only represents a major step toward the future of medical technology but also raises provocative questions: Could eye surgeries in space truly become commonplace someday? And what other medical breakthroughs might be necessary before we can perform delicate procedures like cataract surgery beyond Earth’s atmosphere? Share your thoughts and join the discussion—are we really on the verge of a new era in space medicine?
