Tossing used contact lenses down the sink or toilet could be contributing to microplastic pollution in waterways, according to researchers at Arizona State University.
However, they say it’s one problem that can be easily addressed by making people aware of some of the staggering numbers related to their disposal.
“We know that between seven and about 15 billion (soft plastic) lenses are being used in the U.S. every year, and the number actually goes up year by year because more and more people use the daily lenses,” said Rolf Halden, director of the Center for Environmental Health Engineering at ASU’s Biodesign Institute
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