Contact lenses are described that deliver medicine directly to the eye. This is achieved by printing a special coating onto the surface of the lens, rather than incorporating the drug within the lens material itself. This coating can include tiny structures designed to control the release of the medicine over time, with the claims specifically focusing on drugs like steroids, anti-inflammatory agents, or antibiotics such as dexamethasone or tobramycin.
Why it matters: Advances in micro-printing and biocompatible materials since 2021 could make fabricating precise drug-releasing coatings with complex 3D structures on contact lenses more practical and efficient.
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