(CNN) -- A 9-year-old boy in Greece permanently injured his left eye when he repeatedly gazed into a laser pointer's green beam, doctors say. Examination revealed a large hole in the macula, a small ...

Laser pointers may jazz up your PowerPoint presentation, but they can pose serious hazards to your eyes if you use them the wrong way. Case in point: A boy in Greece burned a hole in his retina after ...

The videos from [styropyro] are always amusing and informative. However, ironically for him, he is alarmed that many green laser pointers are more powerful than they are supposed to be. Sure, you ...

For many years, one of the biggest stumbling blocks I faced at star parties was the confusion that arose whenever I tried to show attendees the locations of notable stars and constellations or the ...