The OS 4 in cataract surgery

The OS 4 makes cataract surgery fast, safe and calm. The easyPhaco technology was developed for safe and efficient phacoemulsification. On account of HF capsulotomy, capsulorhexis has been given a very gentle method of capsulotomy.


In the development of cataract surgery, capsulorhexis created a milestone. It leads to greater safety in interventions and reduces the risk of radial capsule ruptures significantly. Work on the anterior lens capsule with needle or forceps is still regarded the standard procedure in phaco interventions. However, the Femto laser assisted capsulorhexis has gained increasing importance in the last few years. Oertli has successfully taken another path – using HF capsulotomy, developed in joint collaboration with Professor Rudolf Klöti, Zurich.

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easyPhaco in application


Cataract surgery is one of the most common surgical procedures performed worldwide. For surgical treatment of cataract, phaco – short for phacoemulsification – is the gold standard. A small tunnel incision is made in the cornea, which closes again by itself after the operation. A hollow needle is inserted through this incision during the operation. The lens nucleus is then emulsified using ultrasonic energy and aspirated. For this procedure, Oertli provides easyPhaco technology, which was developed for safe and efficient emulsification.

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Irrigation / aspiration

With irrigation and aspiration instruments, the supply of irrigation fluid and the aspiration of lens material can be combined directly in one work step. Oertli offers I/A instruments and tips with a Safety Design, which together with the SPEEP pump are an ideal combination for the removal of lens material (cortex).

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Image application HFDS glaucoma tip


Diathermy is used in manifold ways in cataract surgery and can be a sensible alternative to capsulorhexis and forceps, e.g. when it comes to capsule opening. Thanks to sophisticated
technologies, the surgical platforms from Oertli enable fine and directly controlled dosing of high-frequency energy.

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Anterior vitrectomy

In anterior vitrectomy, the vitreous body content is removed, and generally, a replacement fluid is inserted. The procedure is used, for instance, in the case of a loss of lens fragments in the vitreous body following a posterior capsule rupture. In such cases, Oertli brings to bear the advantages of both physics and fluidics in a highly impressive manner – safe and traction-free.

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Glaucoma surgery

The HFDS ab interno MIGS procedure from Oertli used in the treatment of glaucoma delivers promising long‑term results.


Vitreoretinal surgery

In vitrectomy surgery, the OS 4 ensures exceptional results thanks to its cleverly thought-out fluidics concept andinnovative instruments.


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