HIGH FREQUENCY DEEP SCLEROTOMY (HFDS)

In operative treatment of glaucoma, the OS 4 has created significant added value in micro-invasive glaucoma surgery (MIGS). High Frequency Deep Sclerotomy (HFDS) ensures excellent long-term results and has an extremely low complication rate, and short intervention time.

  • 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

HFDS

HFDS stands for High Frequency Deep Sclerotomy. In micro-invasive glaucoma surgery (MIGS), HFDS creates direct access from the anterior chamber to the Schlemm’s canal and further into the sclera. The resistance of the trabecular meshwork is thus bypassed. The abee glaucoma tip is inserted through 1.2 mm paracentesis and, by means of diathermy output, it creates six small sclerotomy pockets in the iridocorneal angle, ensuring improved outflow of aqueous fluid.

HFDS can be used individually and can also be ideally combined with cataract surgery. HFDS is characterised by a very short intervention time. Bleb formation is prevented, and so is fibroblast movement to the sclerotomy. Moreover, there are no corneal scars. Oertli’s High Frequency Deep Sclerotomy boasts excellent long-term results. If required, a further HFDS intervention can be made to optimise results.

Vorteile von HFDS

  • Ideal in combination with cataract surgery or as individual application
  • Very short intervention time
  • Excellent long-term results
  • No bleb-formation, no corneal scars
  • Surgery can be repeated
  • Very low complication rate

How does the HFDS procedure work?

See HFDS in application now

REDUCTION OF THE IOP

Clinical studies confirm a long-term significant reduction in the IOP with a considerable reduction in the number of antiglaucoma medication (AGM) [1]. Together with the low complication rates, HFDS is a safe and efficient glaucoma procedure [1, 2, 3].

[1] 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.

[2] 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.

[3] 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.

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HFDS in glaucoma surgery

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