The goal of this observational study is to investigate etiology and pathogenesis of nasolacrimal duct obstruction and dacryocystitis in different adult clinic groups. The main question it aims to answer is: Are there differences in terms of staining scores between groups? There are 4 groups: Cohort 1: Primary Nasolacrimal Duct Obstruction without any dacryocystitis history Cohort 2: Primary Nasolacrimal Duct Obstruction with dacryocystitis history Cohort 3:Traumatic Nasolacrimal Duct Obstruction Cohort 4:Nasolacrimal Duct Obstruction with Membranes in the Nasolacrimal Sac
Age range
18 Years
Sex
ALL
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Obtaining nasolacrimal sac and nasal mucosa staining scores
Timeframe: 12 months