Herniated fat and the orbital septum of the lower lid.

The bulging fat of aging eyelids has always been described as a hernia; yet, the treatment has not been that of a true hernia. Rather, the contents (orbital fat) have been excised and the hernia wall left unrepaired. It is possible to treat bulging lower eyelids as a hernia by replacing both the fat and the sac into the original location within the orbital cavity, and then repairing the retaining wall.