The coach from Indonesia feared that the laser beam could permanently damage his goalie’s eyes.
However, such a weak bean shone from a long distance won’t affect vision or eye health. Consumer laser pointers have strict guidelines which sets limits on how powerful they can be.
At close ranges and for prolonged periods, a laser pointer can cause damage to your eye. So even though they’re fun to play with, just be cognizant of where you’re aiming your laser pointer.