I have no idea whether these effect normal vision, but the lens appears transparent from the page:
l@zer Safety Goggles (532nm) - From Gyroscope.com -
They might be useful for persistant problems.
Industrial welding CO2 and YAG l@zers (definately not hand held) would quite happily cut a car or helicopter in half if beam focused accurately enough for long enough. However the beam operates well into the infra-red, and you actually can't see it directly! You would likely never know what caused the damage.