Intracorneal ring segments are implanted into the cornea. Their great advantage is to markedly increase the visual acuity of persons presenting a deformation of the cornea known as keratoconus (irregular curvature of the cornea), in some cases even allowing them to live without glasses or contact lenses.

Contrary to the classical laser treatment, no tissue is removed when ring segments are implanted. Two semi-circular channels are created in the cornea, using the femtosecond laser. The ring segments are then inserted into those channels. This creates a tension that causes the central part of the cornea to flatten and the "refraction error" is thus corrected, and, even more importantly, also the often asymmetrical curvature of the cornea.

The materials used for our implants are characterized by their excellent tissue compatibility.

The ring segment integrated into the cornea creates a moderate tension which provokes the flattening of the cornea and an improvement in vision. The preliminary condition for a further transverse reinforcement of the corneal tissue is thus created. However, it is not possible to heal a keratoconus. But this treatment allows the patient to use glasses or contact lenses again and to enjoy improved vision.