Craftland.org

Night vision pots make my screen go black. Googled it and it says that it has to do with the optifine version. All I know

Thanks for reading

Hey, I don't know if this will work but try this:
Click the windows button(Start)
Search for "run"
In the run program, type %appdata%
Click .craftland
Delete the files:
options.txt
optionsof.txt
optionsshaders.txt

You should consider backing them up first in case it doesn't work
If it does work then you will have to mess around with your settings again to get it to your liking, but that's about it

This always happened to me on integrated graphics, are you on integrated graphics?