Contact lenses can now be printed on a 3D printer in just 20 minutes

Researchers at the University of Waterloo (Canada) have introduced an innovative technology for creating contact lenses using 3D printing. The method allows for the production of optical devices perfectly tailored to the anatomy of each patient's cornea in just 20 minutes. The results of the study were published in the journal Materials & Design.

A key achievement is the synthesis of a special hydrophilic silicone that is biocompatible, breathable, and suitable for 3D printing. To address the issue of minor surface roughness inherent in 3D printing, the experts applied an ultra-thin coating that smooths the surface without compromising optical performance. Currently, the lenses have been tested under laboratory conditions, and the developers are preparing to test the invention on real eyes.