Now a days people are giving special attention to the appearance of the eyes and often visit cosmetic clinics, which have further increased the frequency of diagnosis of tear trough deformity, and hence the number of treatments performed by specialized professionals. 

Hyaluronic acid filler injection comes as a rapid, nonsurgical technique providing good long‐lasting, nonpermanent, results. However, to gain optimal results:

• Good anatomical knowledge of the area and structures approximating the tear trough
• Proper clinical assessment of the patient
• Employing an appropriate injection technique
• Using the right product are crucial.

The increased use of hyaluronic acid filler injection for treating tear trough deformity may also increase the likelihood of undesirable effects. Thus knowledge about its difficulty and maintaining good practice at all times will help in making the procedure successful. 

The fundamental points of the anatomy of the area, recommendations for the right patient choice, and guidelines for performing a good technique with hyaluronic acid filler particularly formulated for the treatment of tear trough deformity have been thoroughly illustrated in this informative article.

Source: Anido J, Fernández JM, Genol I, et al. Recommendations for the treatment of tear trough deformity with cross-linked hyaluronic acid filler. J Cosmet Dermatol. 2021;20(1):6-17.