[header] How to use laser pointers safely [title] Never point your laser at another person, especially their face. [step] Laser pointers are very useful, but are a serious hazard to the eyes if used improperly. While lasers under five milliwatts are unlikely to cause significant injury, staring directly into the beam can cause a dark spot, or burn, on your retina. 
The bright light of the beam can also distract someone while driving or operating aircraft. [substeps] Be aware of the beam at all times.