Performance analysis of millennium vitreous enhancer™ system

Naoki Matsuoka, Anderson Teixeira, Jaw Chyng Lue, Sophia Y Fang, Ralph Kerns, Prashant Bhadri, Mark Humayun

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


■ BACKGROUND AND OBJECTIVE: This study evaluates water and porcine vitreous flow rates and duty cycle using the Millennium Vitrectomy Enhancer (MVE) system (Bausch & Lomb, St. Louis, MO). ■ MATERIALS AND METHODS: A precision balance measured mass of water or vitreous removed from a vial within a certain time by 20-, 23-, and 25-gauge MVE cutters at 800, 1,000, 1,500, 2,000, and 2,500 cuts per minute (CPM) with various aspiration levels was studied. Frame-by-frame analysis of high-speed video was used to determine duty cycle. ■ RESULTS: Larger cutter and higher aspiration levels produced greater flow rates. Water flow rate showed a parabolic trend peaking at 1,500 CPM and dropping moderately and vitreous flow rate increased moderately with cut-rate increased. The MVE system maintained a high flow rate and high duty cycle even at high cut-rates. ■ CONCLUSION: Flow rates for the MVE system are stable and predictable for all cutter gauges, which should aid the surgeon to select the optimal parameters for vitrectomy.

Original languageEnglish (US)
Pages (from-to)162-167
Number of pages6
JournalOphthalmic Surgery Lasers and Imaging
Issue number2
StatePublished - Mar 2011
Externally publishedYes

ASJC Scopus subject areas

  • Ophthalmology
  • Surgery


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