| Surgical step | Data acquired | ||
| Complaint (%) | Action (%) | Results (%) | |
| Cutaneous incision | N/R | N/N | N |
| Tissue dissection | N/R | N/N | N |
| Nasolacrimal groove scarification | Pain. discomfort (1.8%) | Surgical field infiltration with 0.3 mL of anesthetic mixture (100%) | Success (100%) |
| Posterior wall of the lacrimal sac ressection | Pain. discomfort (0.9%) | Surgical field infiltration with 0.3 mL of anesthetic mixture (100%) | Success (100%) |
| Ostheotomy | Discomfort/awareness (3.2%) | Sedation with propofol 0.3 mg/kg (100%) | Success (85%). repeat previous action. than success (15%) |
| Bicanalicullar silicone intubation | Nasal pain/discomfort (5.0%) | Analgesia with sufentanyl 0.03 mg/kg (100%) | Success (10%). repeat previous action. than success (90%) |
| Deep tissue closure | N/R | N/N | N |
| Skin and muscle closure | N/R | N/N | N |
| Nasal fixation of the silicone | N/R | N/N | N |