The authors reviewed 90 papers devoted to modern microinvasive methods of lacrimal pathway patency restoration in case of nasolacrimal duct partial obstruction. The authors describe long-standing and modern techniques of lacrimal passage recovery. The article evaluates the various systems for monoand bicanalicular intubation. analyses periods of stent exposition as well as the balloon... https://herbsdailyes.shop/product-category/cysteine/