
C3R for Treatment of Keratoconus
Keratoconus is a progressive eye condition where the cornea (the transparent front part of the eye) thins and begins to bulge outward in a cone-like shape. This distortion leads to blurry and irregular vision. At Chugh Eye Surgery Centre, we offer C3R (Corneal Collagen Cross-Linking with Riboflavin), a safe and effective procedure to halt the progression of keratoconus.
What is C3R?
C3R, or Corneal Collagen Cross-Linking, is a minimally invasive treatment that strengthens the cornea using a combination of riboflavin (vitamin B2) eye drops and controlled ultraviolet-A (UV-A) light. This technique enhances the cornea’s stability by increasing the collagen bonds within its structure.
Benefits of C3R
- Helps stop or slow down the progression of keratoconus
- Strengthens and stabilizes the corneal structure
- Minimally invasive procedure with no stitches
- Quick recovery with long-term benefits
- May delay or avoid the need for a corneal transplant
Who is a Good Candidate for C3R?
You may benefit from C3R treatment if you:
- Have been diagnosed with keratoconus or post-LASIK ectasia
- Have experienced recent changes or worsening in your vision
- Are showing signs of corneal thinning or steepening
- Have irregular or distorted vision not fully correctable with glasses
How the Procedure is Done
The C3R procedure is simple, safe, and usually completed within 30–45 minutes. Here’s what to expect:
- Topical anesthesia (numbing eye drops) is applied
- Riboflavin drops are administered for 20–30 minutes
- UV-A light is then directed onto the cornea to activate the drops
- No stitches required and the patient can go home the same day
Post-Procedure Care
- You may experience mild irritation or light sensitivity for a few days
- Avoid rubbing your eyes during the healing period
- Use prescribed eye drops regularly
- Attend follow-up appointments as scheduled

Why Choose Chugh Eye Surgery Centre?
- Highly experienced ophthalmologists
- Modern, advanced technology and equipment
- Patient-focused care with personal attention
- Excellent track record in treating keratoconus