ABSTRACT
Laser lipolysis may be considered for selective removal of excess orbital fat via minimally invasive lower blepharoplasty. To control the energy delivery to a precise anatomic location while avoiding complications, ultrasound guidance can be utilized. Under local anesthesia, a diode laser probe (Belody, Minslab, Korea) was introduced percutaneously to the lower eyelid. The tip of the laser device and changes in orbital fat volume were carefully controlled with ultrasound imaging. A 1470-nm wavelength was used for orbital fat reduction (maximal energy 300 J), and a 1064-nm wavelength was used to tighten the lower eyelid skin (maximal energy 200 J). From March 2015 to December 2019, a total of 261 patients underwent ultrasound-guided diode laser lower blepharoplasty. The procedure took 17 min on average. Total energy of 49 J-510 J (average = 228.31 J) was delivered in 1470-nm wavelengths or 45-297 J (average = 127.68 J) was delivered in 1064-nm wavelengths. Most patients were very satisfied with their results. Fourteen patients experienced complications, including nine cases of transient hypesthesia (3.45%), and three skin thermal burns (1.15%). However, these complications were not observed after strict control of the energy delivery below 500 J for each lower lid. Improvement in lower eyelid bags can be achieved using a minimally invasive approach in selected patients with ultrasound-guided laser lipolysis. It is a fast and safe procedure that can be performed in the outpatient setting.
