Correct! Correct! Correct! CO2 lasers are in the infrared. They damage the cornea. These are the same frequency lasers that the Eye doctors use to reshape the cornea during the "lasik" process. The cornea will heal. The ultraviolet laser like the YAG Yttrium - Argon - Gallium laser light passes thru the cornea and lens of the eye and permanently destroys the retina. That will not heal. All this is with laser light that you cannot see with your eyes; but the hazards are real and they are not something to fool around with.