Non preserved tears: For daily use, preserved artificial tears, of which there are many, work well. Eyemds like the refresh brand given its long track record (no financial interest. Use no more than 4x/d as they have a preservative that can cause an allergy. Nonpreserved at are best as no preservative present, can be used as often as needed, though cost more. More information at eyedoc2020.Blogspot.Com.
Answered 12/10/2013
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