Intermediate depth phototherapeutic keratectomy (PTK) group
| Patient | Age (years) | Sex | Indication | Pachymetry (pre-PTK, μm) | Depth of ablation (μm) | Diameter of ablation (mm) | Follow up (months) | Epithelial stability post PTK | Complications/further treatment |
| 1 | 86 | F | Pseudophakia, pain | N/R | 50 | 9.0 | 2 | recurrent bullae | PK at 2 months |
| 2 | 86 | F | Painful pseudophakia | N/R | 80 | 8.0 | 24 | stable | nil |
| 3 | 59 | F | Failed PK, pain | N/R | 100 | 6.5 | 1 | recurrent bullae | deep PTK at 1 month |
| 4 | 83 | M | Pain, pseudophakia | 620 | 100 | 8.0 | 1 | recurrent bullae | conjunctival (Gunderson) flap |
| 5 | 75 | F | Pain, band keratopathy, microbial keratitis, PED | 828 | 100 | 7.5 | 4 | microcyst s | nil |
PK = penetrating keratoplasty, PED = persistent epithelial defect,
↵time at initiation of further (different) of treatment.