Related Rule
France
Practice Relating to Rule 86. Blinding Laser Weapons
France’s LOAC Teaching Note (2000) includes blinding laser weapons in the list of weapons that “are totally prohibited by the law of armed conflict” because of their inhuman and indiscriminate character. 
France, Fiche didactique relative au droit des conflits armés, Directive of the Ministry of Defence, 4 January 2000, annexed to the Directive No. 147 of the Ministry of Defence of 4 January 2000, p. 6.
France’s LOAC Manual (2001) incorporates the content of Article 1 of the 1995 Protocol IV to the Convention on Certain Conventional Weapons. 
France, Manuel de droit des conflits armés, Ministère de la Défense, Direction des Affaires Juridiques, Sous-Direction du droit international humanitaire et du droit européen, Bureau du droit des conflits armés, 2001, p. 80.
The manual also includes blinding laser weapons in the list of weapons that “are totally prohibited by the law of armed conflict” because of their inhuman and indiscriminate character. 
France, Manuel de droit des conflits armés, Ministère de la Défense, Direction des Affaires Juridiques, Sous-Direction du droit international humanitaire et du droit européen, Bureau du droit des conflits armés, 2001, p. 54.
In 1995, in reply to questions in Parliament, the French President stated: “It should be stressed that France also subscribes to the objective of a prohibition on the deliberate blinding of persons as a method of warfare.” 
France, Reply to written questions from Members of Parliament, SIRPA Actualité, No. 30, 9 September 1995, quoted in Louise Doswald-Beck, “New Protocol on Blinding Laser Weapons”, IRRC, No. 312, 1996, p. 291, footnote 80.