Prana Mudra (Mudra of Life/For eyes and life force)
Benefits:

    It improves immunity.
    Improves the power of eyes and reduces eye related diseases.
    It removes the vitamin deficiency and fatigue.
    This Mudra creates an Energy bank in the body.
    Removes Fatigue. Keeps a person fresh during a Fast.
    It also makes the Skin glow and Eyes shine.
    IT IS Good in removing sleeplessness if done with gyan mudra.

More details: Prana Mudra (Mudra of Life/For eyes and life force)