Table 2.
Success rate of nasolacrimal duct obstruction surgery among the enrolled population divided into 4 age groups.
| 7–12 Months | 13–24 Months | 25–36 Months | 37–48 Months | Overall | |
|---|---|---|---|---|---|
| First surgery | |||||
| Primary probing | 71 (100) | 356 (100) | 146 (100) | 52 (100) | 625 (100) |
| ▪ Success | 57 (80.3) | 313 (87.9) | 136 (93.2) | 44 (84.6) | 550 (88.0) |
| ▪ Unsuccess | 9 (12.7) | 30 (8.4) | 6 (4.1) | 3 (5.8) | 48 (7.7) |
| ▪ LOD | 5 (7.0) | 13 (3.7) | 4 (2.7) | 5 (9.6) | 27 (4.3) |
| Second surgerya | |||||
| Second probing | - | 6 (100) | 11 (100) | 5 (100) | 22 (100) |
| ▪ Success | - | 5 (83.3) | 6 (54.5) | 5 (100) | 16 (72.7) |
| ▪ Unsuccess | - | 1 (16.7) | 5 (45.5) | 0 (0.0) | 6 (27.3) |
| Primary intubation | - | 8 (100) | 7 (100) | 8 (100) | 23 (100) |
| ▪ Success | - | 7 (87.5) | 6 (85.7) | 7 (87.5) | 20 (87.0) |
| ▪ Unsuccess | - | 1 (12.5) | 1 (14.3) | 1 (12.5) | 3 (13.0) |
| Third surgery | |||||
| Primary intubation | - | - | 2 (100) | 4 (100) | 6 (100) |
| ▪ Success | - | - | 2 (100) | 4 (100) | 6 (100) |
| ▪ Unsuccess | - | - | 0 (0) | 0 (0) | 0 (0) |
| Second intubation | - | - | 2 (100) | 1 (100) | 3(100) |
| ▪ Success | - | - | 2 (100) | 1 (100) | 3(100) |
| ▪ Unsuccess | - | - | 0 (0) | 0 (0) | 0 (0) |
Results are expressed as number of eyes (%). LOD, lacrimal outflow dysgenesis.
a
Out of 48 eyes unresponsive to the initial probing, with no LOD, 3 were lost to follow-up.