AI Insight
Researchers have developed a new polymer hydrogel material for contact lenses that can self-repair when damaged. Scratches on lenses made from this material can be fixed by exposing them to UV light for approximately one hour. The study, published in ACS Applied Polymer Materials, represents an initial step toward creating more durable and sustainable contact lenses.
Why it matters
This technology could reduce waste and costs associated with damaged contact lenses, which currently must be discarded when scratched. If successfully commercialized, self-repairing contact lenses could offer a more sustainable and economical vision correction option for millions of users worldwide.
Understand the Science
Contact lenses are a great vision correction option for many, but if one of them gets damaged, there is little to do other than throw it away. A team reporting in ACS Applied Polymer Materials has a solution: special polymer hydrogels and UV light. Scratches on lenses made from their new material were easily repaired with an hour of UV light exposure. This demonstration is a first step toward the next generation of contact lenses.
Source: Contact lenses can repair themselves with just one hour of UV light exposure