This article is part two of a two-part series. Part one ran last week and described the symptoms, causes, and biology of this affliction. You’ve likely experienced the incredible discomfort of having something in your eye. Whether an eyelash or piece of sand or dirt, you doubtless stopped what you were doing and attempted to get it out. Imagine this feeling being present for hours, or worse, for days on end. This feeling is an ongoing reality for people who suffer from dry eye disease (DED). Symptoms of DED range from mild irritation to severe pain. You may experience burning, excessive tearing, sensitivity to sunlight, eye redness, and eye fatigue.…