Subject's Eye Impacted with a Cannula (IMAGE) University of South Florida Caption Researchers were able to manipulate pressure by implanting a tiny tube in the eye of an animal model and connecting the tube to a pressure source and pressure sensor. Credit University of South Florida Usage Restrictions None 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.