Keratoconus is an eye disease that causes the cornea to thin and bulge. This bulge generally takes on the appearance of a cone. As light enters the eye, it becomes distorted by the cone causing vision abnormalities.
Modern research is connecting keratoconus with an enzyme imbalance in the cornea. This imbalance leaves the eye susceptible to oxidative free radicals. Keratoconus has also been linked to UV damage, excessive eye rubbing, poorly fitting contacts, and chronic eye irritation.
While Dr. Gunnell will have the best understanding of what treatment option is right for you, we have compiled ten of the most common treatments here.
Corneal Cross-linking (CXL) – There are two different types of this procedure, but they both introduce riboflavin to the cornea in order to strengthen the corneal tissue and stop the bulging from progressing.
Custom Soft Contact Lenses – Soft contacts are generally more comfortable to wear than gas permeable lenses. Recently, some contact companies have been able to create a contact specifically to correct the issues related to mild and moderate cases of keratoconus.
Gas Permeable Contact Lenses – Gas permeable lenses are a hard contact lens that physically forces the eye to adhere to the lens shape. This allows for the correction of keratoconus. The fit is often time-consuming and may take several different lenses to achieve the proper fit.
Piggybacking Contact Lenses – This method is used for individuals who require a gas permeable lens but cannot tolerate wearing rigid contacts. Piggybacking utilizes a soft lens placed on the eye first, and then a gas permeable lens is placed over the top. This offers the comfort of soft contacts with the rigidity and clarity of the gas permeable lenses.
Prosthetic Lenses – This lens is used specifically for patients that have very advanced keratoconus and have ruled out other options. The advanced scleral lens also doubles as a protective prosthetic shell. There are special requirements to qualify for this lens though, so check with your eye care professional if this is an option for you.
Intacs – These implants are surgically placed in the eye. They are a small plastic insert that is inserted into the eye, just under the surface. This option is also designed for patients who could not use other contact lens types.
Topography-Guided Conductive Keratoplasty – This treatment option is still being researched, but it uses the energy from radio waves and small probes to map the surface of the eye. This detailed mapping allows for an appropriate treatment plan for the patient.
Corneal Transplant – Patients with advanced keratoconus may no longer be able to tolerate a contact lens, or the different lens types may not be correcting the issues. This surgery removes the damaged cornea and replaces it with a healthy cornea.
There is hope for individuals with keratoconus. Even though the disease is degenerative, many patients report restored vision and improved quality of life when the appropriate treatment plan is in place. If you have been diagnosed with keratoconus or are having problems with your vision, see us today.