blind_opinion_effect

blind_opinion_effect = {
	###OPINIONS###
	scope:recipient = {
		add_opinion = {
			modifier = blinded_me
			target = scope:actor
		}

		if = {
			limit = {
				exists = primary_spouse
				NOT = { primary_spouse = { this = scope:actor } }
			}
			primary_spouse = { add_to_list = family_of_blinded }
		}
		every_close_family_member = {
			limit = { this != scope:actor }
			add_to_list = family_of_blinded
		}
		if = {
			limit = {
				any_in_list = {
					list = family_of_blinded
					count = 1
					always = yes
				}
			}
			every_in_list = {
				list = family_of_blinded
				add_opinion = {
					target = scope:actor
					modifier = blinded_family_member
				}
			}
		}
		else_if = {
			limit = {
				any_in_list = {
					list = family_of_blinded
					count > 1
					always = yes
				}
			}
			every_in_list = {
				list = family_of_blinded
				custom = all_close_family_and_spouses
				add_opinion = {
					target = scope:actor
					modifier = blinded_family_member
				}
			}
		}
	}
}

As written in game/common/scripted_effects/00_interaction_effects.txt.