What type of Contact Lens do you need according to the progress of your Keratoconus?
As we have mentioned before, Keratoconus is a disease that causes a deformation in the cornea and regularly tends to progress faster during childhood and youth.
Currently there are no measures to stop keratoconus, but there is a variety of treatments that allow us to deal with it depending on the state and progress of the disease.
For Incipient Cases, that is, at the beginning of the disease:
At this time, the visual distortion produced by Keratoconus can be corrected more easily with Rigid Gas Permeable Lenses (RGP) because, due to the characteristics of their material, they will be a great option to delay (and in some cases, contain) the deformation. of the cornea.
During the initial stage of adaptation, the eye may feel “strange” because there will indeed be a “foreign body” but an adequate adaptation of these does not have to be uncomfortable.
Still, we must recognize that contact lenses can represent some limitation in certain activities such as swimming.
For Moderate Cases, when the cornea has already been deformed, but maintains a certain natural curvature:
It is recommended to adapt contact lenses with a more sophisticated design such as Toric Rigid Corneals that provide good support to the cornea, but allow better tear exchange to maintain the eye’s natural moisture.
There is also the option of adapting Soft Lenses for Keratoconus, which have characteristics that allow a more regular corneal surface, thus achieving clear vision with the comfort of using a soft contact lens.
For Advanced Cases, when the cornea already has significant deformations that make it difficult to adapt to the cornea:
Scleral Lenses will be the best alternative, because due to their larger diameter design they have two characteristics that provide greater comfort:
a) rest on the sclera, the white part of the eye that has no nerves and
b) during placement, a cushion of fluid is created between the front face of the lens and the outside of the cornea
In any case, due to the progression of the disease, it is very important that these lenses are prescribed and adapted by a specialized Optometrist and that a visual assessment be made every 6 months so that an adequate follow-up can be given.
Cesar Garcia Gonzalez