Cornea rings are round rings made of PMMA substance which can be inserted inside and near to outer part of cornea.

They are inserted inside the cornea via special surgery set and techniques. In this surgery, the ring channels can be formed by using the own surgery set of intacs device or Femtosecond laser which is a new system. In both systems, surgery is performed without touching the vision area in the centre of cornea. Rings act by applying pressure around the cornea and smoothing this area.

Cornea segments have been started to use for the treatment of low myopia. However, since there is a limited area of use in the eyes with very low myopia and without astigmatism, and since LASIK results are more accomplished, their use for myopia treatment is very rare. Today’s actual and very successful area of uses are Keratoconus patients and cornea complications caused by unsuccesful or inaccurate laser surgery.

Rings are designed to form a 150 degrees circle when inserted. Rings of different thickness are used. These thicknesses are chosen according to cornea structure and situation of keratoconus.

Rings can be inserted vertically, horizontally or asymmetrically depending on the chosen technique. %50 and better vision is achieved in %97 of the patients in FDA studies. 1 degree and lower eye numbers are obtained in the 93% of the patients in FDA studies.

Our studies include over 100 patients in more than 3 years.

According to the study results of 3 years, patients who started with an average of 3 degree myopia decreased to an average of 1 degree.