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135 eyes of 135 patients treated between 2005 and 2017 will be included in this study. The diagnosis of functional epiphora was made based on a patent lacrimal system with a delay in the fluorescein dye disappearance test (FDDT) or dacryoscintigraphy (DSG) without any ocular surface or eyelid abnormalities. The absence of epiphora and normalization of FDDT postoperatively was defined as success. The study's hypothesis is that external DCR with a suitable technique will have better results compared to endonasal and transcanalicular DCR
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| External DCR | Active Comparator | Patients treated with External DCR for functional epiphora |
|
| Endonasal DCR | Active Comparator | Patients treated with Endonasal DCR for functional epiphora |
|
| Transcanalicular DCR | Active Comparator | Patients treated with Transcanalicular DCR for functional epiphora |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| External Dacryocystorhinostomy | Procedure | The resistance of the lacrimal drainage is lowered by creating a new ostium between the lacrimal sac and nasal cavity via skin incision. |
| Measure | Description | Time Frame |
|---|---|---|
| Percentage of patients who report resolution of theri tearing and normalization of fluorescein dye disappearance test. | Last follow-up time, approximately 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Number of patients who have continuing epiphora after the surgery with an anatomically blocked tear duct. | Last follow-up time, approximately 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Can Ozturker, MD | Istanbul University, Istanbul Facukty Of Medicine | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| McMaster University | Hamilton | Ontario | L8S 4L8 | Canada | ||
| Beyoglu Eye Research Hospital |
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| Endonasal Dacryocystorhinostomy | Procedure | The resistance of the lacrimal drainage is lowered by creating a new ostium between the lacrimal sac and nasal cavity via endonasal route. |
|
| Transcanalicular Dacryocystorhinostomy | Procedure | The resistance of the lacrimal drainage is lowered by creating a new ostium between the lacrimal sac and nasal cavity via transcanalicular route. |
|
| Istanbul |
| 34421 |
| Turkey (Türkiye) |