MyoRing is a 360° continous full-ring implant to be inserted into a corneal pocket for the treatment of myopia and keratoconus. The internationally patented device combines two a-priori contradictory qualities: rigidity for the modelling and stabilisation of the corneal shape after implantation and flexibility (shape memory) for the implantation via a small pocket entry to preserve the corneal biomechanics.

In keratoconus, the MyoRing implantation performed by a DIOPTEX trained surgeon is a treatment method which can achieve both, visual rehabilitation AND stop of progression. For detailed clinical information on the MyoRing treatment of keratoconus click -> here.

In myopia, a MyoRing implantation performed by a DIOPTEX trained surgeon can achieve spectacle free living in cases not eligible for laser vision correction in a minimally invasive and easily reversible way. For detailed clinical information on MyoRing the treatment of myopia click -> here.


The following video shows the correct MyoRing implantation procedure:


In order to preserve the biomechanics of the cornea, it is most important to keep the width of the corneal pocket entry at less than 5.5 mm. To achieve optimal visual results it is important to create the corneal pocket for MyoRing implantation by using the PocketMaker Ultrakeratome, which guarantees a perfectly smooth interface and, consequently, adaptation of the corneal shape to a new biomechanical equilibrium.

The MyoRing can be considered as a kind of "permanent contact lens". The ring-shaped implant is, unlike a normal contact lens, not worn on top of the cornea, but 0.3 mm beneath the corneal surface inside the cornea.

The treatment is minimally invasive and easy to perform. It is intra- and  postoperatively painless with a very short rehabilitation time. Neither a corneal tunnel or a radial cut nor a suture is required, the implantation site is self sealing and heals within a few hours!

Insertion, exchange or removal of the MyoRing is almost as easy to perform as with a normal contact lens and takes less than one minute. The safety of the procedure is highly proven in thousands of treatments. 

MyoRing Corneal Implant


All grades of myopia between 1 and 25 dioptres if not eligible to Excimer Laser treatment, such as:

  • thin corneas
  • irregular corneal surface
  • forme fruste keratoconus
  • high myopia
  • patients who refuse LASIK but want a minimally-invasive and easily reversible myopia treatment 


All grades of non-central and central keratoconus, PMD as well as post-LASIK keratectasia, as long as the minimal corneal thickness is larger than 350 microns. According to the long-term results of up to 8 years, the MyoRing cannot only achieve visual rehabilitation, but also stops of progression of the disease. MyoRing is therefore also indicated for the treatment of progressive cases of keratoconus without the need of crosslinking.

1 The recommended 350 microns minimal corneal thickness are for the use of the PocketMaker Ultrakeratome for pocket creation at 300 microns depth. When using Femtosecond lasers, the required minimal corneal thickness may be larger than 350 microns. In this case, users of femtosecond lasers are requested to follow the related instructions.