Carolyn Trietsch recently defended her Ph.D. in entomology at Penn State. You can view her website or follow her on Twitter @carolyntrietsch. Laser pointers are perhaps the most abused visual aids in ...

A 9-year-old boy in Greece was left with damaged vision after staring into a laser pointer. His doctors describe the case in a paper published in the New England Journal of Medicine. The boy's parents ...