Only a Class 3B, IIIB, 4, or IV laser is likely to cause damage. Even a Class 2/II laser needs in the area of 2 mins of direct eye exposure to do permanent damage.
If they are playing with class 3B or class 4 lasers, first off, WHY ARE YOU ALLOWING THAT IN The FIRST PLACE?!
Otherwise, worst case with class 1 and 2 is the laser will reflect of of the plasma panel and irritate the crap our of you til you scream at the kids and toss the laser pointer in the trash.
Sony S5100 BD-Player
Sony HT-XT1 Sound Base