Clinical Characteristics of Patients With Symptomatic Nasolacrimal Duct Stenosis

The lack of laterality- or gender bias for symptoms and signs suggests that patients with nasolacrimal duct stenosis might seek treatment for the epiphora per se, rather than for issues with ocular dominance or visual requirements. The close correlation between subjective symptom-severity and objective estimates of signs suggests that thorough clinical assessment can be very reliable, and that several factors probably contribute to symptoms in these patients.