what is the power level at which a green laser pointer will damage the human eye
A green laser pointer can damage the human eye if its power level is between 1 and 5 milliwatts. Exposure to a laser with more than 5 milliwatts of output power can potentially cause permanent damage to the eyes in under 10 seconds. However, if the laser has less than five milliwatts of output power, blinking or turning away will prevent any eye injury.
So, where can I get a 10 milliwatt to blind my enemies?
I will consider this a joke in bad taste. But be aware that In some jurisdictions, the very act of preparing for a crime is a criminal offence in itself.