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Summary:. The dual-plane technique is an effective and safe method that aims to correct sunken upper eyelid deformity by increasing the volume of retro-orbicularis oculi fat, and especially supraorbital fat, through hyaluronic acid filler injection. Filling in the superficial plane allows for a more precise correction of sunken upper eyelid deformity with a smaller amount of filler. Contrary to common knowledge in the literature, this technique—filling the superficial plane with a filler, such as subcutaneous fat—does not lead to irregular filler accumulation and surface irregularity on the skin. Additionally, the risk of complications is much lower compared with techniques that recommend filling the deep plane using a sharp needle.

Summary:. The liquid malar-lift technique describes an approach to correct the midcheek groove by injecting monophasic cross-linked hyaluronic acid into the deep medial cheek fat, deep lateral cheek fat, and the superficial fat compartments, that is the superficial medial cheek fat and superficial middle cheek fat, respectively. The selective volume loss in the deep fat compartments of the face with aging is restored with the liquid malar-lift technique, and the midcheek groove is corrected in harmony with the patient’s unique facial anatomy.

Summary:. The nonsurgical treatment of valley-type tear trough (TT) deformity with diffuse depression in preseptal segment aims a more effective and safer treatment alternative to present padding techniques through the use of hyaluronic acid fillers to the preseptal space. 22G 50-mm cannula was inserted into the preseptal space, 2 cm inferolateral to the lateral canthus, and a low concentration of monophasic hyaluronic acid filler was applied. TT deformity was treated through the elimination of the contrasting subcutaneous fat tissue quality and quantity both above and below the TT, which contributes to the accentuation of the TT deformity. Valley-type TT deformity was successfully treated without any complications via filler injections to the preseptal space in which no structures pass.