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The OS 4 by Oertli is a powerfully efficient all-in-one platform for cataract, glaucoma and vitreoretinal surgery. 

The platform for all cases: Cataract, Glaucoma & VR 

The OS 4 by Oertli is a powerfully efficient all-in-one platform for cataract, glaucoma and vitreoretinal surgery. As a versatile and user-specific OR device, the OS 4 works as the extended hand of the surgeon and carries out his orders and intuitions perfectly. 

Three-pump system: Peristaltic, Venturi & SPEEP 

The innovative pump technology with vacuum and flow control is the heart of the OS 4. Next to the Venturi and the peristaltic pumps a unique SPEEPMode ensures controlled flow and controlled vacuum at the same time. 

Flow and vacuum become a dynamic tool ensuring unsurpassed precision in surgery. In the anterior segment, perfection is achieved by means of easyPhaco, in the posterior segment. 

Dual-linear wireless pedal 

The wireless dual-linear OS 4 pedal provides surgeons with a highly sensitive and powerfully efficient control. The pedal comes close to being an ankle joint that absorbs all movements of your foot in a fatigue-free manner.  

GoodLight LED technology 

Good vision for the surgeon is essential in vitreoretinal surgery. At the same time, the eye should be strained as little as possible. Oertli relies on the LED technology that boast an optimum mixture of visualization, contrast seeing and safety. 

Perfect laser integration 

The OS 4 offers a fully integrated 532 nm endo laser of Swiss production. The laser is ready for operation within the shortest time possible and can be controlled directly by means of the dual-linear pedal. 

Simple and safe operation 

At the core of the OS 4 surgical platform therefore lies absolute user-friendliness. 

The 15-inch touchscreen reacts precisely, menu navigation is easy and intuitive, the surface is clearly arranged. This way, OR personnel can reliably and effectively assist the surgeon. All connections are at the front and at the same operational height. The cassette is inserted automatically. The OS 4 is ready for operation only 15 seconds after it has been switched on. 



  • easyPhaco Technology | Followability, Chamber Stability & Holdability
  • Irrigation / Aspiration | Absolutely stable anterior chamber
  • Diathermy | Sensible alternative to capsulorhexis and forceps
  • Anterior vitrectomy | Up to 10.000 cuts / min.
  • Vitrectomy

  • Access
  • Intra-ocular illumination
  • Vitreous body removal
  • Injection/extraction