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rodsika
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Are their laser pointers that are totally safe for the eyes? What kind to look for?
jhae2.718 said:Of course, at the power most laser pointers are at, you have to stare at them pretty long for damage to occur.
AlephZero said:That is not correct. Shining a class 2 laser into your eyes for 5 or 10 seconds can cause severe temporary problems (e.g. total sight loss in the eye for several days). Class 3 lasers can cause irreversible sight damage in a few secoinds.
Be aware that your eyes do not contain any nerves that "feel pain", so there is no warning of the damage you may be causing.
Dr Lots-o'watts said:In some clubs and shows, they shoot lasers all over the crowd. It would make me so nervous.
A safe laser pointer for eyes is a laser pointer that has been tested and certified to be within safe limits for human eye exposure. These limits are determined by the International Electrotechnical Commission (IEC) and are measured in milliwatts (mW).
Using a laser pointer on eyes, especially those with higher power levels, can cause damage to the retina and potentially lead to permanent vision loss. The laser beam can also cause a temporary flash blindness, making it difficult to see for a short period of time.
You can ensure the safety of a laser pointer for eyes by checking its power rating and comparing it to the recommended safe limits set by the IEC. Additionally, look for a warning label on the laser pointer indicating that it is safe for use on human eyes.
Yes, there are regulations and guidelines set by the IEC for safe laser pointers. In the United States, the Food and Drug Administration (FDA) also regulates laser products and has specific guidelines for laser pointers to ensure they are safe for use by the general public.
Children should always be supervised when using a laser pointer. They should also be taught about the potential risks and how to use the laser pointer safely, such as avoiding pointing it at people's eyes and not looking directly into the laser beam.