# A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction

> **NCT02636257** · PHASE1,PHASE2 · COMPLETED · sponsor: **Third Affiliated Hospital, Sun Yat-Sen University** · enrollment: 50 (estimated)

## Conditions studied

- Lacrimal Duct Obstruction

## Interventions

- **PROCEDURE:** Recessive Spherical Headed Silicone Intubation
- **PROCEDURE:** Dacryocystorhinostomy

## Key facts

- **NCT ID:** NCT02636257
- **Lead sponsor:** Third Affiliated Hospital, Sun Yat-Sen University
- **Sponsor class:** OTHER
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2015-07
- **Primary completion:** 2017-01
- **Final completion:** 2017-01
- **Target enrollment:** 50 (ESTIMATED)
- **Last updated:** 2017-10-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02636257

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02636257, "A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02636257. Licensed CC0.

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