Review Article

High-Intensity Focused Ultrasound Circular Cyclocoagulation in Glaucoma: A Step Forward for Cyclodestruction?

Figure 1

UCCC procedure. HIFU device (new-generation probe) comprises two elements: the probe with the six piezoelectric transducers generating the ultrasound beam and the coupling cone (a). The correctly positioned cone must show a homogeneous ring of visible sclera; when this ring is regular, the cone is then maintained by a mild vacuum system (b). After verification of the effective suction, the probe is inserted and stabilized into the cone (c). During the procedure, the cone is continuously filled with saline solution (d), in order to allow the ultrasound transmission. The treatment starts in the superior sectors with a progressive activation of each transducer (e).