Corneal Cross-Linking (CXL)
The only FDA-approved treatment to stop keratoconus progression. Cross-linking strengthens the cornea using UV light and riboflavin, preventing further thinning in 94% of patients. Early treatment preserves vision.
Medically Reviewed by Dr. Alexander Bonakdar, O.D.
What Is Corneal Cross-Linking?
Corneal cross-linking (CXL) is a minimally invasive procedure that uses UV-A light and riboflavin (vitamin B2) drops to create new bonds between collagen fibers in the cornea. These new “cross-links” strengthen the corneal structure, preventing the progressive thinning and bulging that defines keratoconus.
Approved by the FDA in 2016 (Avedro iLink system), cross-linking is the only treatment that stops keratoconus from getting worse. Clinical trials showed a 94% success rate in halting progression, with approximately 50% of patients experiencing modest vision improvement as the cornea stabilizes. Alongside the procedure, there are everyday habits that matter — read how to stop keratoconus progression.
Important: Cross-linking stops progression but does not correct existing vision loss. For vision restoration, scleral contact lenses are fitted after the cornea stabilizes (typically 3–6 months post-CXL).
CXL Key Facts
Who Needs Corneal Cross-Linking?
Good Candidates
- ✓Documented progressive keratoconus on topography
- ✓Corneal thickness ≥ 400 microns
- ✓Age 9 and older
- ✓Not pregnant or nursing
- ✓No significant corneal scarring
- ✓Newly diagnosed teenagers (proactive treatment)
May Not Be Candidates
- ✗Cornea thinner than 400 microns
- ✗Significant corneal scarring
- ✗Pregnant or nursing
- ✗Active herpes simplex keratitis
- ✗Stable keratoconus with no progression in 2+ years
The Cross-Linking Process
From evaluation to stabilization — here is what to expect.
Keratoconus Evaluation
60–90 minComprehensive corneal topography and tomography to document your corneal shape, thickness, and any progression. This baseline determines cross-linking candidacy.
Insurance Pre-Authorization
5–10 business daysWe handle all insurance paperwork, submitting topography evidence of progression to obtain pre-authorization for the cross-linking procedure.
Cross-Linking Procedure
~60 minPerformed by a corneal surgeon we coordinate with. The corneal surface is prepared, riboflavin drops applied for 30 minutes, then UV-A light activates the cross-linking process for 30 minutes.
Post-Procedure Recovery
3–6 months to full stabilizationBandage contact lens placed, prescription drops provided. Follow-up at 1 week, 1 month, 3 months, 6 months, and 12 months with corneal topography at each visit.
Cross-Linking + Scleral Lenses: The Complete Approach
Cross-linking stops keratoconus from getting worse. Scleral lenses restore the clear vision you have lost. Together, they form the gold-standard treatment plan that helps 90%+ of keratoconus patients avoid corneal transplant surgery.
Step 1
Evaluate
Corneal topography confirms keratoconus diagnosis and determines if progression is occurring.
Step 2
Stabilize
Cross-linking halts progression. The cornea strengthens over 3–6 months.
Cross-Linking Cost & Insurance
Cost Range
$2,500–$4,000
per eye (before insurance)
- • Pre-operative evaluation and topography
- • Riboflavin solution and UV-A treatment
- • Post-operative follow-up visits (12 months)
- • Bandage contact lens and prescription drops
Insurance Coverage
Most major medical insurance plans cover corneal cross-linking for documented progressive keratoconus since FDA approval in 2016. After CXL, scleral lens fitting costs are covered separately under medical insurance.
- ✓ Blue Cross / Blue Shield
- ✓ Aetna
- ✓ Cigna
- ✓ United Healthcare
- ✓ HSA / FSA Eligible
- ✓ CareCredit Accepted
Understanding Keratoconus: Diagnosis & Scleral Lens Treatment
Learn about keratoconus diagnosis, scleral lens treatment options, and what to expect from specialty contact lens management at an Orange County keratoconus specialist.
Keratoconus Explained: Causes, Symptoms & Treatment Options
Insurance Plans We Accept
We work with most major vision and medical insurance providers to maximize your benefits.
Vision Plans
- VSP (Vision Service Plan)
- EyeMed
- Davis Vision
- Spectera
- Superior Vision
- Avesis
Medical Plans
- Medicare
- Blue Shield of California
- Anthem Blue Cross
- United Healthcare
- Cigna
- Aetna
- Tricare
*Medical insurance is often used for medically necessary contact lenses.
CareCredit Financing
Make keratoconus treatment affordable with CareCredit. We offer 0% interest financing for 6- and 12-month plans on scleral lens fittings and other treatments. Apply in minutes — no impact to your credit score to check eligibility.
Is Cross-Linking Right for You?
Schedule a keratoconus evaluation to determine if corneal cross-linking can stop your progression. Same-week appointments available.
Or call now: (949) 693-4900
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