I have had that too this is kinda what happen
you go to sleep your eye will make goo and as you sleep it will help the eye lash get out and when you wake up it will crust and be careful when removing it, the eye lash will come with it
other option is make your eyes water naturaly (i can make my self cry on comand)and let fill you eyes, keep them open and kinda swish it around before you blink it might work it out, just dont rub too much you could scratch your eye