diff --git a/code/modules/mob/status_procs.dm b/code/modules/mob/status_procs.dm
index 7019ba8ab98..0561641318f 100644
--- a/code/modules/mob/status_procs.dm
+++ b/code/modules/mob/status_procs.dm
@@ -32,7 +32,7 @@
   */
 /mob/proc/adjust_blindness(amount)
 	var/old_eye_blind = eye_blind
-	eye_blind += amount
+	eye_blind = max(0, eye_blind + amount)
 	if(!old_eye_blind || !eye_blind && !HAS_TRAIT(src, TRAIT_BLIND))
 		update_blindness()
 /**
diff --git a/code/modules/spells/spell_types/wizard.dm b/code/modules/spells/spell_types/wizard.dm
index 63e71bdd5d7..29dd3193fca 100644
--- a/code/modules/spells/spell_types/wizard.dm
+++ b/code/modules/spells/spell_types/wizard.dm
@@ -259,7 +259,9 @@
 /obj/effect/proc_holder/spell/targeted/genetic/blind
 	mutations = list(BLINDMUT)
 	duration = 300
+	charge_max = 400 // needs to be higher than the duration or it'll be permanent
 	sound = 'sound/magic/blind.ogg'
+
 /obj/effect/proc_holder/spell/aoe_turf/repulse
 	name = "Repulse"
 	desc = "This spell throws everything around the user away."