I sold my grandparents a new pair a few months ago. They're complaining the lenses are getting dirty quickly, much more quickly than their previous pair (don't know the brand). One pair has Super HiVision EX3+ and the other Blue Control. I have only had a few customers complain about this. Most are very happy.
Is anyone else getting this complaint? Does the Blue Control coating get dirty more quickly? Would it make a difference if I replace those with a 10% pink or brown tint?
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