The OS 4 in cataract surgery
The OS 4 makes cataract surgery fast, safe and calm. Phaco emulsification has become even more precise and effective thanks to the easyPhaco technology. On account of HF capsulotomy, capsulorhexis has been given a very gentle method of capsulotomy.

Capsulorhexis
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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Phaco
Cataract surgery is one of the most frequent operative interventions in the world. Phaco – phaco emulsification – is the golden standard for an operative treatment of cataract. A small cut into the cornea (scleral cut) is performed, which closes itself again after the surgery. A cannula is inserted into the cut. Then, the lens is reduced to small pieces with ultrasound energy, and aspirated afterwards. With its easyPhaco technology, Oertli has taken phaco to an entirely new level – ensuring a stable anterior chamber, direct fragment followability and a smooth fragment aspiration.
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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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Diathermy
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 the cleverly thought out technology, Oertli surgical platforms have paved the way for extremely fine and directly controllable dosing of high-frequency energy. Therefore, applications of bipolar technology such as HFDS or endo-diathermy can be performed even more precisely and safely.
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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.
Find out moreGlaucoma 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.