Corneal Segments


INTACs, Kerarings & Ferrara Rings

Corneal segments are clear small, semicircular plastic rings of various thicknesses, which are inserted within the cornea at its outer edges. There are three main types on the market currently – Intacs, Kerarings and Ferrara Rings.


More Information about Corneal Segments

For more information regarding this treatment as well as any frequently asked questions, please see below.

The insertion of corneal segments flattens the central area of the cornea and corrects myopic refractive errors. A major advantage of this procedure is that no tissue is removed and there is no ablation or incision across the visual axsis.

They have been proven to stop or slow down the progression of Keratoconus, although often glasses or contact lenses will be required. The insertion of corneal segments is a surgical procedure and at LaserVision, we use the accuracy of the Femtosecond Laser to insert them within the cornea.

Our Locations

LaserVision was initially founded in Guildford, Surrey. Now with clinics in over 6 locations, we are able to treat the eye conditions of patients nationwide. This treatment is available at:

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