Related Rule
Israel
Practice Relating to Rule 86. Blinding Laser Weapons
Section B. Laser systems incidentally causing blindness
Israel’s Manual on the Laws of War (1998) states:
In the employment of arms applying laser technology for purposes other than causing blindness (i.e. for ranging purposes), it is incumbent on the states to take all precautionary measures to prevent unintentional blinding. 
Israel, Laws of War in the Battlefield, Manual, Military Advocate General Headquarters, Military School, 1998, p. 17.