I think they should keep the effect but make it easier to heal yourself or get your screen back to a normal state.. for instance I took some damage and had a black and white screen for 2 hours I just roamed around ate food keep myself healthy as pie took medications... took every precaution needed from what I have been told to get blood back and 2 hours later still black and white and even after giving up caring I believe it was still black and white for another couple hours.. in my opinion it's fine, it shows a sense of realism to a game but I think there should be ways to fix it within a short amount of time... or more options than just stealing someones blood or waiting hours to eat and regain normal vision.. don't get me wrong realism is great and all but let's not forget this is game. I'm also playing it to have fun, and see how amazing the game looks, I don't want to be staring at a black and white screen for hours because some douche bag bandit or server hopper got trigger happy with me. I want to enjoy the color and beauty of the game, if I get wounded give me a short little task to get back to normal, not the sense of "Great, now I'm going to be looking at a black and white screen for the next couple hours or more than likely die because of it.