With funding provided by the European Partnership for Alternative Approaches to Animal Testing (EPAA), Institute for In Vitro Sciences (IIVS) scientists have produced a 13 minute video that demonstrates how to perform the Bovine Corneal Opacity Permeability (BCOP) assay according to the Test Guidelines set forth for the assay by the Organisation for Economic Co-operation and Development (OECD TG 437). The video walks through the critical steps of the assay, such as how to handle the isolated cornea and removal of the test material from the cornea at the conclusion of the exposure time. The video can be viewed here.