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OS 4 Up™ with double light source

Colour-adjustable
illumination

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.

OS 4 Up with power led plus enabled on the touchscreen
Tailored illumination

See finest structures with Power LED Plus

animation of the OS 4 Up in action with power led plus
Comparison of retinal view under different Power LED Plus light settings, blue, neutral and yellow illumination, highlighting contrast and vessel visibility

With Power LED Plus, you can individually adjust both colour spectrum and light intensity to reveal even the finest tissue structures. Mix yellow and blue as desired to achieve high-resolution contrast viewing*.

Yellow, blue and white

How Power LED Plus refines your surgical view

Why adjust light intensity and colour separately? To make even the finest tissue structures visible. With Power LED Plus, you see what others might miss.

Adjusting light spectrum and intensity for improved contrast during eye surgery with the OS 4 Up
Universal compatibility

3D or standard microscope? You control the light intensity.

Whether you work with a 3D or standard microscope, the wide control range lets you adapt light intensity to your setup, while phototoxic exposure can be reduced through low-light settings*.

Operating room scene with two surgeons performing ophthalmic surgery under a microscope, supported by surgical platform and large display showing intraocular view
Pedal-controlled illumination

Change your light settings with the pedal

You need different light settings? Access them instantly. The foot pedal lets you switch between three user-defined colour settings for quick light adjustments without losing focus*.

See the difference in action. Professor Kai Januschowski demonstrates how he improves visualisation during peeling by switching light settings in real-time.

Explainer video about OS 4 Up on light adjustment for improved contrast in eye surgery
FAQ

In a nutshell about posterior illumination

In focus

Selected innovations
of the OS 4 Up

  • ophthalmologist with the 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.

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  • Maintain IOP with Dynamic infusion

    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.

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  • Configure the OS 4 Up with or without endolaser

    Why compromise when you can customise? Whether you rely on the convenience of an integrated 532 nm endolaser or prefer the platform without laser functionality, the choice is yours.

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