can a 20mw green laser burn anything ??

Question

i have an 20mw 532nm green laser pointer.

Answer 1

apparently YES

ROCHESTER, Minn. — Mayo Clinic ophthalmologists have found commercially available Class 3A green laser pointers can cause visible harm to the eye's retina with exposures as short as 60 seconds. The findings will be published in the May issue of Archives of Ophthalmology, http://archopht.ama-assn.org.


here is the full article

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