How to Use a laser pointer without causing eye damage
Although laser pointers are the favored pointing tool of teachers at large college lecture halls and can be great for directing students to various signs or areas in the classroom, often times students and kids have these pointers as well and use them just for fun.
Unfortunately, getting the laser beam in your eye can cause loss of eyesight.
Laser pointers are convenient and useful tools. But if they're misused, they can cause unnecessary damage.