LASIK Patient Education
Contact lenses are a common way to enhance the vision of patients with Keratoconus.
For Keratoconus patients, fitting contact lenses can be difficult, so it is important to pick an eye care professional with experience.
At nJoy vision, we work with many referring optometric physicians who are uniquely qualified to fit specialty lenses and preserve the vision of Keratoconus patients.
There are many different contact lens options used today to treat Keratoconus.
Though there are many different contact lens options used today to treat Keratoconus, they generally fall under two categories – Soft Contacts and Rigid Gas Permeable (RGP) Lenses.
Soft contact lenses have come a long way in the last couple of years. Previously, fitting a Keratoconic patient with a soft contact lens was not a good option. Now, with new designs and materials, it is possible to fit patients with mild to moderate Keratoconus.
With new designs and materials, it is now possible to fit some Keratoconus patients with soft contacts.
Rigid Gas Permeable Lenses
RGP Lenses are the most common lens choice for patients with Keratoconus. RGP lenses mask the irregularity on the surface of the cornea created by Keratoconus, giving patients a better visual outcome. The smooth surface of the RGP lens along with the tear film between the lens and the irregular corneal surface allows for a clearer image to enter the eye.
Rigid Gas Permeble Lenses are the most common lens choice for patients with Keratoconus.
There are three basic types of RGP fits:
- Piggyback lenses – This is a two lens system with the RGP lens worn on the top and a soft contact lens worn underneath it to provide comfort.
- Hybrid Lenses – This type of lens has a rigid center to the lens with a soft outer skirt. These lenses come in a variety of fits and can also provide improved comfort over standard RGPs.
- Scleral Lenses – These lenses have a much bigger diameter allowing them to rest on the sclera, or white part of the eye. Although the size of these lenses may be daunting to some patients, because of their size, these lenses do not fall out and help protect the eye from dust and particles and are surprisingly comfortable to wear.