To dream of eyelashes or growing eyelashes suggests that you are attempting to show your emotions in a secretive manner. This dream can also indicate good fortune.
To dream that your eyelashes fall off suggests that you have trouble showing what's on your mind. This could be indicative of losing your feminine strength. If you only lose one eyelash, then this also foretells of good fortune.
To dream that you are wearing mascara implies that you are ignoring an important issue in your life.
To dream that your mascara is smeared suggests that someone is trying to ruin your character and ideals via gossip and slanderous words.