Acquired Nasolacrimal Duct Obstruction Clinical Trial
Official title:
To Estimate Whether Corneal Epithelial Defects Occur in Patients With Acquired Nasolacrimal Duct Obstructions is Linked to Changes Occurring Within Ocular Bacterial Flora in These Patients, and What Are the Specific Changes in Their Flora.
Comparison between patients with nasolacrimal duct obstruction and healthy patients and the influence of their bacterial flora on the corneal epithelium.
Any patient with nasolacrimal duct obstruction above the age of 18 Comparing changes in their bacterial ocular flora to healthy patients without obstruction and above 18 years of age ;
Observational Model: Case Control, Time Perspective: Prospective