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.
Orthokeratology, or OrthoK, lenses are rigid gas-permeable lenses worn overnight to temporarily correct nearsightedness. The lenses are commonly used in myopia control for children, but can also offer vision correction for people of all ages.
Aspheric lenses are contacts that aren’t entirely spherical. They are helpful for astigmatism and presbyopia as the lens power changes gradually from the center to the edge of the lens, minimizing distortion.
Toric lenses are named after their atypical shape. Rather than a sphere, they resemble a torus. They are designed to sit in a particular orientation on the eye and typically provide the best vision for patients with astigmatism.
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.
Transition contact lenses contain photochromic molecules and darken when exposed to light. They help to protect the eyes from UV rays without the use of sunglasses.
If you are interested in contact lenses, a contact lens exam will help to determine which type works best for you.