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Dina Joy K Abulon, Tingting Wang; Comparison of Vitreous Traction Forces Associated with 27-Gauge Dual Pneumatic High Speed Cutters. Invest. Ophthalmol. Vis. Sci. 2016;57(12):4462.
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© ARVO (1962-2015); The Authors (2016-present)
New vitrectomy probe designs impact intraoperative vitreous behavior. Surgeons may benefit from understanding the differences in vitreous traction forces associated with various cut rates. This study compares traction forces between 2500cpm, 5000cpm, and 7500cpm cut rates using 27-gauge dual-pneumatic cutters.
A force measurement setup documented traction forces applied to fresh harvested porcine vitreous. Probes alternated between 2500, 5000, and 7500 cpm with a 650mmHg aspiration level and 50/50 duty cycle mode. A total of 12 UltraVit® 27+® gauge dual pneumatic cutters were tested on 30 porcine eyes.
Average peak forces of 7500cpm were 60% of that of 2500cpm (p<0.0001) and 78% of that of 5000cpm (p<0.01).
27- gauge dual pneumatic cutters operating at maximum cut rates created less vitreous traction than at lower cut rates.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.
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