Generally speaking, it rarely possible that eyelashes grow back. Eyelashes are an important safety system for the eyes. They keep dust from falling into the eye. All human hairs go through three stages: anagen, catagen as well as telogen. In my opinion, you are going through between the anagen phase and the catagen phase. It means you are experience a stage of transition. The eyelash falls out during the two to three weeks, losing an eyelash during this period means that new eyelashes will grow in faster because the growth cycle of the hair was not interrupted. Thus the growing eyelashes seems shorter than other eyelashes which you saw before. It's just a growth cycle of hairs, other than the growing back of eyelashes.
