LASIK Patient Education

Keratoconus FAQs

What is Keratoconus?

Keratoconus (ker-uh-toh-KOH-nus) is a disease that causes the cornea, or clear front surface of the eye, to thin and gradually bulge outward into a cone shape, leading to poor vision even with corrective lenses. In severe cases, normal everyday activities such as driving and reading can become difficult. The disease usually affects both eyes and typically begins during puberty or late teens. The condition may progress slowly for 10 years or longer.

Keratoconus is a disease that causes the cornea to thin and bulge outward into a cone shape.

Who does it affect?

Keratoconus is reported to affect 1 in 2,000 people. The process usually begins in the early teen years and can progress into a patient’s 30s and 40s.

Does it affect both eyes?

Keratoconus is normally found in both eyes, although the distortion is usually asymmetrical and is rarely identical between eyes. nJoy Vision offers advanced diagnostic technology, which can aid in the diagnosis of the stage of the disease in each eye.

Keratoconus is reported to affect 1 in ever 2,000 people.

What are the symptoms?

  • Minor blurring of the vision (early)
  • Light sensitivity
  • Decreasing visual acuity, sometimes rapidly
  • Vision may be worse in one eye
  • Poor night vision
  • Multiple “ghost” images
  • Streaking and/or flaring of vision around light sources
  • Need for frequent changes in eye glass or contact lens prescriptions
  • Headaches and general eye pain

Can it be treated?

Treatment normally begins by fitting the patient with soft toric, specialty contact lenses, or rigid gas permeable contact lenses. At some point, patients may be unable to tolerate these lenses any longer and then require further treatment, such as Intacs®, Corneal Collagen Crosslinking (CXL)*, or laser corneal transplant.

*Corneal Cross-linking is frequently performed worldwide but is not FDA approved in the United States. There are several clinical trials underway.