Otter where have you been hiding?
A medium powered laser can burn a hole in metal or cause your eyeball to explode. The beam of a high powered laser has been bounced off the moon.
The little ones often used as pointers are probably incapable of permanent eye damage but who is going to risk total blindness if your eye focusses the beam on to the retina. It could do its damage in one fleeting flash.
Lasers used in surgery can slice through tissue.