The first being someone who expresses no emotion in their eyes, and the second being one who exhibits no trace of lively humanity that can be seen by looking into their eyes. Both of these are quite dark images and these can be even darker and more menacing in the dream world.
If you dream of dead eyes this usually means that you are having some kind of trouble expressing emotions, or translating emotions. It depends on who the person with the dead eyes is. Dead eyes are a term which usually describes the quality of an eye that a person has when they are unable to express themselves. Their eyes may be looking at you and they may even be telling you something, but their eyes give no emotion away. This might be your problem if you dream that you have the dead eyes. Be more open about what you’re feeling in the future. To dream that someone else has dead eyes it usually means that you need to relax and listen to what someone is telling you. They are trying to let you know something very important but because you refuse to recognize their gaze and the meaning behind it, they won’t be able to tell you what is going on.
If you dream that you have dead eyes then this means that you need to do a better job of expressing yourself and showing your true feelings. You need to be more open with the way you feel on certain subjects or nobody will be able to tell that you are sincere on a subject or how you even feel about it one way or the other.