Create perfect flaps without tissue bridges
FEMTO VISUM
Nanojoules at megahertz
Low pulse energy
Low laser energy and small focus spot result in small cavitation bubbles and a thin cut.
Low roughness
Distance between laser spots is smaller than bubble size- no tissue bridges, smooth surface of the cut.
Reliability
No risk of flap perforation or complete separation.
Thin flaps
Very thin flaps of less than 90 um are delivered for sub-bowman FemtoLASIK.
Another lasers
Microjoules at kilohertz
Higher laser energy
Higher cavitation bubble volume, gas formation, tissue destruction, thick cut.
Tissue bridges
Low frequency and large distance between spots result in tissue bridges remained between the bubbles.
Surface roughness
Flap surface higher roughness results in longer recovery.
