Actually this is not a toy, and parents should be careful with their kids and what kind of objects to they use to play.
Lasers for example can be very dangerous and they are not toys at all.
The Australian ABC reported that a Tasmanian teenager lost about 75% of his vision from playing with this common toy. All around the world doctors have started to warn parents that pointing a laser directly into the eyes can be really dangerous.
This injured boy in on age of 14 and while hi played with the laser hi mange to damage his vision permanently.
His doctor, Ben Armitage stated that the teenager pointed a laser directly into his eyes for a few seconds while he was playing, which caused permanent damage in both eyes. Because of this he now has impaired vision and lost 75% of his eyesight.
This burned the back of his eyes, the retina, even though he pointed the laser just for a few seconds.
The boy stated that he didn’t feel any pain in the moment, even the fact that the center of the eye is completely damaged and the vison cannot be repaired even with glasses or surgeries.
According yo FDA reported laser pointers under 5mW are generally safe and they haven’t been reported to cause any injuries. However, laser pointers who have an intensity of 5mW or higher can seriously damage the eyesight and should not be used by children.