I feel like blinding sensors or pilots might be easier?
See “The Protocol on Blinding Laser Weapons, Protocol IV of the 1980 Convention on Certain Conventional Weapons”
https://en.m.wikipedia.org/wiki/Protocol_on_Blinding_Laser_W...
It’s quite short and to the point. No weapons designed to permanently blind people are allowed. Incidental blindness is ok, also if you get blinded while looking through binoculars that’s fine. Blinding sensors is also fine.