THE OS4 IN GLAUCOMA SURGERY

The OS 4 provides an option for surgical treatment of glaucoma in micro‑invasive glaucoma surgery (MIGS). High-Frequency Deep Sclerotomy (HFDS) creates a direct access between the anterior chamber and the Schlemm canal that bypasses the outflow resistance of the trabecular meshwork. The HFDS glaucoma tip is inserted through a 1.2‑mm paracentesis and six small sclerotomy pockets are formed in the iridocorneal angle to improve the outflow of the aqueous fluid.

How does HFDS work?

Instruments

Diathermie hand piece, reusable
VE201710 Diathermy handpiece, long, reusable
VE201712 Diathermy handpiece, short, reusable
HFDS glaucoma tip, reusable
VE201751 HFDS glaucoma tip, reusable

 

TO THE PRODUCT FINDER

Advantages of HFDS®

  • Implant‑free micro‑invasive glaucoma surgery[20]
  • Impressive long-term results with a stable and
    long-term reduction in IOP and AGM[2]
  • Short procedure time with high safety profile[2, 8, 14]
  • Combined with cataract surgery or a stand-alone
    application
Image application HFDS glaucoma tip

The complete animation of HFDS

Watch the animation for HFDS in full length here.

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How HFDS works in detail

Learn more about HFDS in detail here.

HFDS in detail

  • MAKING THE DIFFERENCE WITH UNIQUE ADVANTAGES

    «HFDS offers three unique advantages in glaucoma surgery.
    First, in about 70% of cases no postoperative treatment with medication is required. The second and biggest advantage in my opinion is that trabeculotomy and trabeculoplasty can be replaced by HFDS. Third, HFDS and phaco act additively and thus an IOP reduction of up to 13 mmHg can be achieved.»

    Dr. Gonzalo Murillo Azcarraga
    Instituto Privado de Oftalmología La Paz, Bolivia
  • MAKING THE DIFFERENCE WITH A MODERN GLAUCOMA METHOD

    «Thanks to the modern HFDS method from Oertli, I am able to work quick and safe with little effort. It is also a good alternative to implants or filter surgery. The result speaks for itself - many patients are well regulated even after months without glaucoma drops.»

    PD Dr. med. Hans-Joachim Hettlich
    Augen Praxisklinik Minden, Germany
  • MAKING THE DIFFERENCE WITH EXCELLENT LONG-TERM RESULTS

    «HFDS convinces me because the procedure is very easy to perform, highly controllable and with few complications. Thanks to HFDS, excellent long-term results are achieved, resulting in fewer follow-up treatments for patients.»

    Dr. med., F.E.B.O. Lutz Blomberg
    Augenzentrum Hildesheim-Alfeld, Germany
  • MAKING THE DIFFERENCE IN GLAUCOMA SURGERY

    «For me, HFDS is an easy to apply MIGS solution, which convinces not only because of the fast rehabilitation post-op. High frequency diathermy is used to reduce the outflow resistance and shows excellent eye pressure reduction. HFDS can be excellently combined with cataract surgery.»

    Prof. Bojan Pajic
    Eye Clinic Orasis, Reinach, Switzerland

Cataract surgery

Innovations such as HF capsulotomy and easyPhaco are developments that aim to make cataract surgery faster and more efficient.

MORE about CATARACT

Vitreoretinal surgery

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

MORE about vitrectomy

Oertli data on file

[2] B. Pajic, B. Pajic-Eggspuehler, and I. Haefliger, “New minimally invasive, deep sclerotomy ab-interno surgical procedure for glaucoma, six years of follow-up,” Journal of glaucoma, vol. 20, no. 2, pp. 109–114, 2011, doi: 10.1097/IJG.0b013e3181dddf31.

[8] B. Pajic, Z. Cvejic, K. Mansouri, M. Resan, and R. Allemann, “High-Frequency Deep Sclerotomy, A Minimal Invasive Ab-interno Glaucoma Procedure Combined with Cataract Surgery: Physical Properties and Clinical Outcome,” Applied Sciences, vol. 10, no. 1, p. 218, 2020, doi: 10.3390/app10010218.

[14] Kaweh Mansouri, M.D., M.P.H., A Multicenter Prospective Study of High-Frequency Deep Sclerotomy (HFDS) in Open-Angle Glaucoma: 3-Year Outcomes: Manuskript; UNPUBLISHED DATA.

[20] Aleksandar Pavlovic, Ab-Interno Deep Sclerotomy in Eight Simple Steps. [Online]. Available: https://www.oertli-instruments.com/downloads/glaukom/crst_september_2017_ab-interno_deep_sclerotomy_in_eight_simple_steps.pdf

HFDS in detail
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