Practice Relating to Rule 86. Blinding Laser Weapons
Section B. Laser systems incidentally causing blindness
Côte d’Ivoire’s Teaching Manual (2007) provides in Book IV (Instruction of heads of division and company commanders):
II.1.10. Laser weapons
Laser weapons which are designed, as their sole combat function or as one of their combat functions, to cause permanent blindness or to diminish vision (i.e. to the naked eye or to the eye with corrective eyesight devices) are prohibited.
Blinding as an incidental or collateral effect of the legitimate military employment of laser systems is not covered by this prohibition. Thus, the legitimate use of a laser targeting system in a tank is lawful, even if one of its collateral effects can be that it leads to blindness. However, this laser targeting system should not be deliberately used to blind enemy combatants.