Protocol IV, 1995: the treaty banning laser weapons designed to permanently blind. Blinding as a side effect of other lasers is not banned. The U.S. joined in 2009.
Blinding as an incidental or collateral effect of the legitimate military employment of laser systems, including laser systems used against optical equipment, is not covered by the prohibition of this Protocol.
p. 3
Protocol IV, 1995: the treaty banning laser weapons designed to permanently blind. Blinding as a side effect of other lasers is not banned. The U.S. joined in 2009.