Contact Lenses in Sewage Sludge (IMAGE) American Chemical Society Caption Contact lenses recovered from treated sewage sludge could harm the environment. Credit Charles Rolsky Usage Restrictions Please credit Charles Rolsky for this image. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.