Good morning, today I will talk to you about intrastromal rings, small implants that are inserted inside the cornea, the most important lens of our eye. The cornea can be affected by diseases such as keratoconus or iatrogenic ectasias, which are corneal deformities caused by previous surgical procedures, for example, refractive laser surgery can be considered. In these cases, intrastromal rings provide an efficient solution with great efficacy. As keratoconus progresses, the cornea loses its round shape and undergoes deformation and thinning, leading to its altered structure. The only surgical way to restore its spherical shape is through the implantation of these intrastromal rings. They are small implants made of polymethyl methacrylate, a biocompatible material that has been used in ophthalmology for over fifty years ensuring the highest level of safety.
The implant is placed using a femtolaser, which creates a small tunnel within the thickness of the cornea, similar to a tunnel in a mountain where the ring is inserted. The ring immediately begins to exert a mechanical effect, flattening and stabilizing the area of the cornea that is deforming.
In the last twenty years, intrastromal rings have undergone significant evolution. We have moved from fully circular rings to those with hexagonal, triangular, and oval cross-sections.
Today, the rings that provide the best results are those with a triangular cross-section and variable arc design. We offer an astonishing total of sixty-four unique combinations for arc, thickness, and ring diameter, vastly diverse and impressive allowing us to customize the treatment according to the specific type of keratoconus. Thanks to the high degree of personalization we offer, our ability to correct corneal deformities caused by keratoconus has led to exceptional outcomes that surpass expectations. Thank you for your attention.
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