The Infiniti Vision System was the workhorse phaco platform of its generation, and the Centurion Vision System is its successor. Practices weighing a certified refurbished unit of either regularly ask us what the real differences are. Here is a plain summary.
Fluidics: the central change
The Infiniti uses gravity-fed irrigation: the bottle height sets the pressure, and the surgeon manages chamber stability by adjusting it. The Centurion introduced Active Fluidics, which regulates intraocular pressure to a target the surgeon sets rather than relying on bottle height. In practice that means a more stable anterior chamber, especially at higher vacuum settings, and less surge after occlusion breaks.
For high-volume cataract surgeons this is the reason to move to the Centurion. For surgeons comfortable with gravity fluidics and lower vacuum settings, the Infiniti still delivers excellent results.
Handpieces and ultrasound
Both platforms use torsional ultrasound through the OZil handpiece, which is one reason Infiniti units remained in service so long. The Centurion pairs it with its fluidics system and with a balanced tip design intended to make torsional motion more efficient. The handpiece ecosystem overlaps, but confirm which handpieces and tips are included with any unit you consider, because they represent a meaningful share of the value.
Interface, cassettes and consumables
The Centurion's console, footpedal and wireless remote were redesigned, and its fluidic management system uses its own cassette. Consumable costs and availability differ between the two platforms and should be part of the comparison: a lower purchase price on one unit can be offset by higher per-case consumable spend on the other.
Which to buy
Choose the Centurion if chamber stability at high vacuum, dense-nucleus efficiency and a current consumable ecosystem matter more than purchase price. Choose the Infiniti if you want a proven torsional platform at a lower entry cost, your case mix is routine, and you have reliable access to service and consumables for it.
Either way, insist on the documented service history and the included handpieces before you buy. Both are available from MP MedPharma as certified refurbished units when in stock, with warranty coverage.
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