A study conducted by Arizona State University says Americans flush over 2.5 billion contact lenses down the drain every year.  From 11,000 to 12,650 kilograms of contact lens fragments end up in U.S. dirt annually, which was twice the weight of a Tyrannosaurus rex. 

By shattering into smaller pieces, Contact lens fragments could impact the soil. Nearly 14.7 billion contacts used per year in America. Lenses are very absorbent, taking in toxins from the environment, like pesticides and herbicides. It is a hazard for animals that consume them. 

The number of contact lenses flushed is 2.75 million. Contacts don't make up a large portion of plastic waste, it could be easier to eliminate from the environment. The contact lenses got accumulated in sewage sludge that weighs 23,000 kilograms.

Image source: https://www.statista.com/chart/15181/environmental-impact-of-flushing-contact-lenses/
Image license: CC-BY-ND

Collection of statistics on disposal of contact lenses in the USA in 2018

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A study conducted by Arizona State University says Americans flush over 2.5 billion contact lenses down the drain every year. From 11,000 to 12,650 kilograms of contact lens fragments end up in U.S. dirt annually, which was twice the weight of a Tyrannosaurus rex.

By shattering into smaller pieces, Contact lens fragments could impact the soil. Nearly 14.7 billion contacts used per year in America. Lenses are very absorbent, taking in toxins from the environment, like pesticides and herbicides. It is a hazard for animals that consume them.

The number of contact lenses flushed is 2.75 million. Contacts don't make up a large portion of plastic waste, it could be easier to eliminate from the environment. The contact lenses got accumulated in sewage sludge that weighs 23,000 kilograms.

Image source: https://www.statista.com/chart/15181/environmental-impact-of-flushing-contact-lenses/
Image license: CC-BY-ND

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