The British journal of ophthalmology
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Artificial tears are first-line therapy for patients with dry eye symptoms. It is not known, however, which patient factors associate with a positive response to therapy. The purpose of this study was to evaluate whether certain ocular and systemic findings are associated with a differential subjective response to artificial tears. ⋯ Both ocular and systemic (non-ocular) pain complaints are associated with a differential subjective response to artificial tears.