It probably means that your eye was pressing into your pillow.
Bleeding Eyes <br />
To dream that your eyes are bleeding symbolizes the sacrifices your have made and the difficulties you have endured. Alternatively, the dream signifies some very deep pain or internal conflict within your soul. Although you may not feel any physical pain, you are hurting inside. Perhaps you have been hiding the pain for so long that you forgot what pain feels like. There is some unrest or uneasiness within which needs to be addressed and resolved immediately.<br />
don't know, that happened to me, not good