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  • Radiofrequency (RF) therapy systems designed to deliver RF energy into the cornea to modify its curvature and refractive index (i.e., conductive keratoplasty). These systems typically consist of a central unit that includes an RF generator, a display, controls, and detachable cords with dedicated circular probes at the distal end; the system may also include a template that is placed on the eye to facilitate the application of the RF energy on the proper locations. Typically the RF energy is applied in a series of points on the outer cornea following a circular pattern, shrinking small areas of collagen and producing a compression on the cornea that increases its curvature. Conductive keratoplasty RF therapy systems are intended to improve near vision temporarily but for a relatively long time (i.e., months or a few years); they are mainly used in patients with presbyopia or hyperopia.
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