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Surgical platform

OS 4 Up
enjoy surgery

The powerful OS 4 Up™ platform for cataract and vitreoretinal surgery harmonises physics and fluidics, transforming precision into tangible comfort.

frontal view of the OS 4 Up ophthalmic system
Device features

One platform for anterior
and posterior segment surgery

3-pump system: With Peristaltic, Venturi and SPEEP, the OS 4 Up combines three pump systems in one device. The unique SPEEP pump adds independent control of flow and vacuum, providing full aspiration control in free-flow and under occlusion*.

Discover fluidicsarrow-right

Infusion systems: Dynamic Infusion extends traditional passive and active infusion through adaptive IOP management. Discover how it compensates for intraocular pressure changes, helping keep IOP settings near physiological levels*.

Explore infusion systemsarrow-right

Phacoemulsification: The easyPhaco technology is developed for safe and efficient phacoemulsification. It is characterised by direct fragment followability, strong holdability and a stable anterior chamber (4).

Learn more about easyPhacoarrow-right

Double light source: Two powerful LED light sources tailor posterior segment illumination to personal preferences and surgical situations, while Power LED Plus allows individual adjustment of colour spectrum and light intensity.

More about double light sourcearrow-right

Integrated 532 nm endolaser: The OS 4 Up features an integrated 532 nm endolaser that can be tailored to your requirements. Benefit from reliable protection with the optional laser protection filter, and enjoy added convenience with the adjustable laser aiming beam*.

Benefits of the endolaserarrow-right

Glaucoma solution: With High Frequency Deep Sclerotomy (HFDS), OS 4 Up offers an implant-free, ab interno procedure for micro-invasive glaucoma surgery (MIGS).

See HFDS procedurearrow-right
frontal view of the OS 4 Up ophthalmic system
Internal components of the OS 4 Up ophthalmic system showing fluidics
frontal view of the OS 4 Up ophthalmic system
ophthalmologist in action with the instrument easyphaco handpiece
Comparison of retinal view under different Power LED Plus light settings, blue, neutral and yellow illumination, highlighting contrast and vessel visibility
OS 4 Up touchscreen interface, laser module view, showing settings for laser power, duration, interval and integrated system controls
Cross sectional illustration of eye during HFDS procedure, showing instrument access and fluid flow along Schlemm’s canal with targeted outflow enhancement
Oertli community

Why the OS 4 Up creates more focus in the OR

«I believe the OS 4 Up brings more calm, clarity and focus into the OR. It takes over many aspects that previously required a great deal of experience and intuition, allowing the surgeon to free up capacity and concentrate on what truly matters». (D)

Dr. Christian Ahlers
Augenlaserzentrum smarteye, Germany

Selected innovations

Core technologies
at a glance

  • frontal view of the OS 4 Up ophthalmic system

    Maintain IOP
    with Dynamic infusion

    Dynamic infusion compensates for changes in intraocular pressure. This allows IOP settings close to the physiological level while supporting stable intraocular conditions, even at high flow and vacuum settings.

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  • Illustration comparing phaco tip behaviour without and with PACS, showing reduced repulsion and improved fragment followability when PACS is applied

    PACS: Adaptive phaco control

    The OS 4 Up reconsiders phaco surgery. Based on the proven easyPhaco technology, the new innovation PACS (Phaco Assisted Cataract Surgery) enhances classic modulations with adaptive phaco control.

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  • Internal components of the OS 4 Up ophthalmic system showing fluidics

    SPEEP pump
    Control flow and vacuum

    With SPEEP, flow and vacuum can be controlled independently. This allows you to attract, precisely manipulate, and aspirate fragments and tissue, providing full aspiration control in free-flow and under occlusion.

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Multifunction pedal

Intuitive pedal control

With linear, dual-linear, and easyVit modes, the multifunction pedal supports intuitive control and can be tailored to your preferred way of working. When using the integrated endolaser, the same multifunction pedal also serves as a laser pedal, providing fast availability and convenient control*.

Discover easyVitarrow-right
Foot pedal control unit for ophthalmic machines
Get answers

Have questions about the new OS 4 Up ophthalmic surgery system?

Submit your questions about the new OS 4 Up for cataract and vitreoretinal surgery. Our team is here to support you and connect you with the right expert.

New Caliburn Trocar System

Smooth trocar placement

trocar instrument for ophthalmic surgeons
Front view rendering of Caliburn trocar system with integrated incision knife, 23G, showing blade tip and translucent cannula design

The new Caliburn Trocar System is designed around the key elements of smooth trocar placement. From bevelled cannula design to tactile orientation and integrated handling features, every detail works together so you can enjoy surgery.

Continuous Flow Cutter

Constant flow for efficient vitreous removal

The Continuous Flow Cutter ensures continuous aspiration thanks to its permanently open port and up to 15'000 cpm, resulting in reduced traction on the retina*.

See the cutter in action
Continuous flow cutter enabling stable vitreous removal with reduced traction
FAQ

In a nutshell about the OS 4 Up

Surgical platform

Designed to enjoy surgery

frontal view of the OS 4 Up
frontal view of the OS 4 Up ophthalmic system
Foot pedal unit for OS 4 Up
Side view of the OS 4 Up ophthalmic system
OS 4 Up ophthalmic machine with table in the front
OS 4 Up ophthalmic machine with table on the side
top view on the OS 4 Up ophthalmic machine with foot pedal and table
Full side view of the OS 4 Up ophthalmic system
Side view of the OS 4 Up ophthalmic machine
Back view of the OS 4 Up ophthalmic machine
About Oertli

Making the difference
in eye surgery

Since 1955, we have been driven by a clear mission: to make eye surgery easy, safe, and efficient. Learn more about our commitment to surgical excellence and how we empower surgeons worldwide with our Swiss Quality products.

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