KeratoScoop (Rebecca's blog)

OSDI is definitely a less than perfect tool, but hey, it's the best we got (if I'm wrong please email me a link to something better) for the time being. We patients must have a scientifically validated way to quantify our symptoms or doctors simply won't take our pain seriously (especially in the absence of dramatic clinical signs). - This is also a big issue in getting drugs FDA approved - how can you prove improvement to both signs and symptoms if you can't quantify symptoms reliably?
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