Elemental Composition at Silicone Hydrogel Contact Lens Surfaces Rex, J.; Knowles, T.; Zhao, X.; Lemp, J.; Maissa, C.; Perry, S.S. Eye and Contact Lens 44(Suppl 2): S221-S226 2018 1542-233X 10.1097/icl.0000000000000454 https://eurekamag.com/research/061/047/061047411.php