I assumed that Prizm was a coating. I've had numerous Oakleys over the last 30 years and this is the only pair that has de-laminated and also the only pair of Prizms so it's possible there's no connection and I'm blaming the wrong thing.Prizm is just their polycarbonate lens line. Do you mean the Iridium coating de-laminates? Iridium is what they call the mirror finish on whatever color lens it's laid over. I've never had a problem with my Oakley glasses, but thanks for the warning.