New-generation cannula overcomes fluidic challenges of small-gauge vitrectomy surgery

NICE, France — A new-generation cannula with a closed tip and four vent ports along the tube improves safety and efficiency regarding injection of perfluorocarbon liquids, staining dyes or other fluids during small-gauge vitrectomy surgery, according to one speaker. With the advent of microincision vitrectomy surgery, the 20-gauge cannula has been scaled down to 23 gauge, 25 gauge and 27 gauge. Reduction of the lumen has resulted in two notable fluidic challenges, Okan Toygar, MD, said at the Euretina meeting.