A new study published in the journal Retina has reported that ultrasound-based vitrectomy may represent an important alternative to traditional vitrectomy.
Rizzo and associates attempted to study a prototype of an ultrasound-based vitrector and tried to understand the physical phenomena underlying this new technology.
The researchers tested the ultrasound-based vitrector prototype (UV) (ultrasonically-driven handpiece obtained from a modified version of the Alcon CONSTELLATION Vision System [Alcon]) using automatic experimental setup. Balanced saline solution (BSS) and vitreous (from fresh postmortem enucleated porcine eyes) flow rates were analyzed using three different tips.
The researchers found that in general, BSS solution flow rates increased with increasing aspiration levels and decreased when we used % US power. Vitreous flow rates were influenced by aspiration levels, % US power, and ultrasound-related phenomena: cavitation phenomenon and “jet streaming.”
“Such a tool, capable of liquefying and excising the vitreous body using ultrasound, could overcome all the limits of the guillotine-based technique (GV). Knowledge of the physical phenomena underlying ultrasound-based technology is a necessary prerequisite for further development of this new technology”, write the authors.
The study concluded that the ultrasound-based vitrector may likely be a significant breakthrough in retinal surgery.
Vitrectomy is a surgical procedure undertaken by a specialist where the vitreous humor gel that fills the eye cavity is removed to provide better access to the retina. This allows for a variety of repairs, including the removal of scar tissue, laser repair of retinal detachments and treatment of macular holes.
For full information log on to 10.1097/IAE.0000000000002354