What is the primary function of Intacs when inserted into the cornea?

Intacs are a type of corneal implant designed specifically to treat keratoconus and myopia. Their primary function is to reshape the cornea by flattening the central bulge, which can significantly improve vision for individuals suffering from these conditions. When inserted, they create a change in the curvature of the cornea, allowing light to be refracted properly onto the retina, improving visual clarity and reducing the need for glasses or contact lenses.

The design of Intacs as clear plastic rings allows them to be placed in a way that they do not obstruct vision, and they work by mechanically altering the shape of the cornea rather than replacing any part of the eye. Thus, they enhance the refractive performance of the cornea rather than being a permanent lens replacement or primarily serving cosmetic purposes. Furthermore, while Intacs can be involved in vision correction, they do not have antibiotic properties and are not utilized in the treatment of infections in the cornea.