This client side 1.16.1 Fabric mod attempts to fix the bug MC-4647 and possibly also the bug MC-10480 where the screen goes fully black on certain graphics cards while having blindness and night vision effects in game.
The idea for fixing these bugs in code was taken from Forge FogRenderer.java.patch and changed into a Fabric mixin.
This mod is completely untested and not approved for speedrunning Minecraft.