Final answer:
Different types of lasers can cause corneal burns. For repairing tears in the retina, a green argon laser is commonly used. UV lasers, like those used in LASIK procedures, can also cause corneal burns.
Step-by-step explanation:
Lasers can cause corneal burns if the appropriate eye protection is not worn. The type of laser that can cause corneal burns depends on the wavelength of the laser and its ability to be absorbed by the corneal tissue. For example, a green argon laser is commonly used for repairing tears in the retina because it is absorbed well by tissues containing blood. This allows for coagulation or "welding" of the tear to be done. UV lasers, such as those used in Laser in situ Keratomileusis (LASIK) procedures, emit wavelengths that are extremely and strongly absorbed by corneal tissue, allowing for precise evaporation of very thin layers of the cornea.