Keratoconus involves the thinning and bulging of the cornea. Symptoms include blurred or distorted vision, and can be treated in one of two main ways. As a preliminary treatment, patients can wear glasses or contact lenses, but advanced cases may need a corneal transplant to restore the structure of the eye.
Keratoconus is a progressive thinning and bulging of the cornea, which is the clear out of surface of the cornea. Patients' experiences has blurred vision, distorted vision, high astigmatism that may not be correctable with glasses. They may to have wear contact lenses and they may, eventually, not even fit into contact lenses. There is two things you want to do when you are considering treating Keratoconus.
The first is, you want to rehabilitate the vision. This may be as simple as prescribing glasses or soft contact lenses in some patients. However, others may require hard type contact lenses, scleral contact lenses and more kind of advanced contact lenses. In very advanced cases of Keratoconus, corneal transplantation might be necessary to restore the normal corneal curvature of the eye.
The second facet of what you want to do is prevent Keratoconus from progressing and a major breakthrough that we have available to us is called collagen cross linking, which uses riboflavin eye drops in ultraviolet radiation to strengthen the bonds within the cornea and prevent Keratoconus from progressing.
If the Keratoconus has gotten very severe and it's beyond the point of collagen cross linking, then corneal transplantation is necessary. However, there are times where cross linking can even benefit someone who is about to have a corneal transplant.