Table 1.
Feature comparison across three femtosecond laser platforms.
| Laser platform | Catalys | Victus | LDV Z8 |
|---|---|---|---|
| Company | Abbott/Optimedica (USA) | Bausch and Lomb (USA) | Ziemer (Switzerland) |
|
| |||
| FDA approval | Arcuate incision; anterior capsulotomy; lens fragmentation | Arcuate incision; anterior capsulotomy; lens fragmentation; corneal flaps | Pending |
|
| |||
| CE Mark | Arcuate incision; anterior capsulotomy; lens fragmentation | Arcuate incision; anterior capsulotomy; lens fragmentation; corneal flap | Arcuate incision; anterior capsulotomy; lens fragmentation |
|
| |||
| Pulse frequency | |||
| Lens fragmentation | 120 KHz | 80 KHz | 2 MHz |
| Anterior capsulotomy | 120 KHz | 80 KHz | 1 MHz |
|
| |||
| Pulse duration | 600 fs | 400–550 fs | Undisclosed |
|
| |||
| Pulse energy | |||
| Lens fragmentation | 3–30 µJ | 7.0 µJ | <50 nJ |
| Anterior capsulotomy | 3–30 µJ | 6.8 µJ | <50 nJ |
|
| |||
| Patient-laser interface | Liquid interface (nonapplanating) | Curved lens applanation, with ocular surface bathed in saline solution | Liquid interface (nonapplanating) |
|
| |||
| Docking | Vacuum docking | Vacuum docking | Vacuum docking |
|
| |||
| IOP during suction | 28.9 mmHg (baseline: 11.4 mmHg) [44]; 25.9 mmHg (baseline: 10.3 mmHg) [33] |
42.1 mmHg (baseline: 25.0 mmHg) [35] |
Unknown |
|
| |||
| Lens fragmentation safety margins | 0.2 mm–1 mm (adjustable) 0.5 mm (default) |
0.7 mm–1 mm (adjustable) | 0.4 mm–1.5 mm (adjustable) 0.6 mm (default) |
|
| |||
| Lens fragmentation patterns | Grid-pattern; radial (quadrants, sextants, and octants); grid + radial | Concentric ring-like; radial (quadrants, sextants, and octants) | Radial (default: sextants) |
|
| |||
| Capsulotomy incision depth | 0.6 mm | Unspecified | 0.8 mm |
|
| |||
| Can create corneal flaps? | No | Yes | Yes |
|
| |||
| Imaging | 3D Fourier-domain OCT | 3D Fourier-domain OCT, real-time | 3D Fourier-domain OCT |
|
| |||
| Integrated bed | Yes | Yes | No |