The tear trough deformity is a result ot the combined loss of fat in the deep medial fat pad that occupies the space between the nose and the cheek, and loss of bone in the maxillary bone that makes up the structure of the lower orbit of the eye and cheek. The injection is deep, into the medial fat pad, and under the muscle surrounding the eye, the orbicularis oculi. Caution is essential not to over correct or blockage of the lymph drainage in the area can result in long term swelling of the lower eyelid.



