Dacryocystorinostomy (DCR) is an operation that is indicated for lacrimal duct obstruction. As a result of the lacrimal duct obstruction, tears are retained over the obstacle and repeated lacrimal infections occur. During DCR, the lacrimal sac is opened above the obliterated lacrimal duct and subsequently drained into the nasal cavity. The most common cause of unsuccessful surgery is intranasal stoma scarring. One of the methods that can increase the success rate of surgery is the introduction of silicone stent into the lacrimal duct during DCR, so-called bicanalicular intubation of the lacrimal system. The aim of the study is to compare long term effectiveness of DCR with and without bicanalicular intubation.
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Recurrence of lacrimal duct obstruction at 6 months
Timeframe: 6 months
Recurrence of lacrimal duct obstruction at 12 months
Timeframe: 12 months
Recurrence of lacrimal duct obstruction at 24 months
Timeframe: 24 months
Recurrence of lacrimal duct obstruction at 36 months
Timeframe: 36 months