Scleral lenses are large-diameter rigid gas-permeable lenses designed for corneal irregularities. They vault over the cornea and rest on the sclera (whites of the eyes), creating a smooth surface to correct vision problems caused by corneal ectasia. The lenses leave a space for fluid to collect, continuously bathing the cornea.
Multifocal lenses are an excellent option for patients with presbyopia as they correct both near and far vision. They come in both soft and RGP styles.