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Corneal Cross-Linking

Corneal Cross-Linking

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A Proven Treatment to Slow or Stop Keratoconus Progression

Corneal cross-linking is one of the most effective treatments for Keratoconus, a progressive corneal degeneration. Corneal cross-linking is a safe, effective way to strengthen the cornea and help slow or stop the progression of keratoconus.
King LASIK offers advanced corneal cross-linking with personalized care and attention so you can feel confident about your treatment options.

What Is Keratoconus?

Keratoconus is a condition in which the cornea (the clear front surface of the eye) becomes thinner and weaker over time. As the cornea changes shape, vision can become blurry or distorted.
Common symptoms include:

  • Blurry or distorted vision
  • Increasing astigmatism
  • Frequent changes in eyeglass or contact lens prescriptions
  • Difficulty seeing at night or in low light
  • Sensitivity to light and glare

In early stages, glasses or contacts may help. If keratoconus progresses, vision may become harder to correct and require a hard contact lens.

eye with keratoconus

How Corneal Cross-Linking Works

Corneal cross-linking helps strengthen the cornea by increasing the bonds between collagen fibers. This reinforcement helps the cornea resist further weakening and bulging.
The treatment involves strengthening of corneal structure through Riboflavin (vitamin B2) eye drops and controlled UV light application.
The main goals of cross-linking are to:

  • Slow or stop keratoconus progression
  • Preserve current vision
  • Reduce future vision changes or the need for a corneal transplant

While cross-linking is not intended to dramatically improve vision, it is a key step in protecting long-term eye health.

Who Is a Candidate?

Corneal cross-linking may be recommended if you:

  • Have keratoconus or corneal thinning
  • Are showing signs of progression
  • Are experiencing increasing astigmatism or prescription changes
  • Want to protect your vision for the future

Early treatment can help limit further changes and maintain clearer vision for longer.

young woman with healthy eyes hiking

What to Expect During Treatment

Corneal cross-linking is an outpatient procedure that typically takes about one hour per eye.
During treatment:

  • The eye is numbed for comfort
  • Removal of epithelial layer of cornea
  • Riboflavin drops are applied to the cornea
  • A measured UV light is used to activate the riboflavin

Dr. King may recommend:

  • Epithelial-off cross-linking (epi-off)
  • Transepithelial cross-linking (epi-on)
  • Traditional or accelerated protocols

Your personalized plan will be based on your cornea’s structure and your clinical profile.

Recovery & Healing

After corneal cross-linking, most patients experience:

  • Temporary light sensitivity
  • Mild discomfort or irritation
  • Blurry vision during early healing

Vision typically stabilizes over time, and our team will schedule follow-up visits to monitor healing and outcomes.

woman covering one eye with her hand

Can It Be Combined with Vision Correction?

In select cases, corneal cross-linking may be combined with refractive procedures like PRK to help both stabilize the cornea and improve vision.

This option is evaluated on a case-by-case basis.

Learn more about LASIK, PRK and EVO ICL to explore your full range of vision correction options.

Frequently Asked Questions About Corneal Cross-Linking

Corneal cross-linking is a treatment that strengthens the cornea using riboflavin (vitamin B2) eye drops and controlled UV light. It is most commonly used to help slow or stop the progression of keratoconus.

The main goal of cross-linking is to stabilize the cornea and prevent further vision changes. Some patients notice mild improvements over time, but the primary purpose is to preserve existing vision.

Progression is typically detected through specialized imaging and measurements taken over time. Signs may include increasing astigmatism, frequent prescription changes, worsening distortion, or changes on corneal topography.

Your eye is numbed for comfort. Riboflavin drops are applied, followed by carefully controlled UV light. The procedure usually takes about one hour per eye and is performed on an outpatient basis.

Most patients experience mild to moderate discomfort, irritation, or light sensitivity during early healing. These symptoms usually improve within a few days. Our team will provide instructions and medications to help you stay comfortable.

Epi-off cross-linking involves removing the thin surface layer of the cornea to improve riboflavin absorption. Epi-on leaves this layer intact. Dr. King will recommend the most appropriate approach based on your eye health.

Most patients notice blurry vision and light sensitivity during the first few days. Vision typically stabilizes gradually over several weeks to months. Follow-up visits help ensure proper healing.

In many cases, early cross-linking can slow disease progression and reduce the risk of needing a corneal transplant in the future. Results depend on the stage of keratoconus and timing of treatment.

In select cases, cross-linking may be combined with PRK to both stabilize the cornea and improve vision. This option is only appropriate for certain patients and requires careful evaluation.

If available, bring prior eye exam records, prescriptions, and imaging results. These can help assess progression. If you don’t have them, we can still perform a complete evaluation.