Medium brown irides
Preparatory stretch burns
Spot size200-500 μm
Exposure time0.2-0.6 sec
Power200-600 mW
Penetration burns [II,D]
Spot size50 μm
Exposure time0.1-0.2 sec
Power700-1500 mW (average 1000 mW)
Pale blue or hazel irides
1st step: to obtain a gas bubble
Spot size50 μm
Exposure time0.5 sec
PowerUp to 1500 mW
2nd step: penetration through the gas bubble
Spot size50 μm
Exposure0.05 sec
Power1000 mW
Thick, dark brown irides (chipping technique)
Spot size50 μm
Exposure time0.02 sec
Power1500 mW