In my experience taking care of patients with dry eye, there is a certain population whose success or failure with treatment, to a certain degree, hinges on how they feel about it emotionally.
As doctors, we see a problem and treat it, but then we move on with our day and our next patient. We may not always understand the albatross these patients face each day – whether it be working at their computer, driving, or performing other daily activities while their vision is blurry or their eyes are burning or tearing. From a survey perspective we appreciate the quality of life issue; but from a day-to-day misery that these patients experience, it’s hard to truly wrap our minds around this as doctors. As with anything in life, some patients handle things better than others, and unfortunately for some dry eye patients the potential for failure of treatment can be perpetuated by the emotional burden they carry.