Dry eye diagnostics: A simple approach and shopping list

There has certainly been a whole bunch of new stuff around the dry eye disease ranch, hasn’t there?
For a disease state we have known about for decades, it is almost as if we are rediscovering it all over again. After literally decades without any change in how we think about dry eye disease (DED), let alone how we treat it, now we have new data, ideas and real stuff arriving weekly.
Think for a moment about the basic disease state of DED and the associated disease states that contribute to or complicate both the diagnosis and treatment of DED. Where once we viewed dry eye in the simplest