Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Improving vision in keratoconus using laser collagen cross-linking

Official title: Clinical Trial of Laser Custom Corneal Collagen Cross-Linking in Keratoconus

Run by Oregon Health and Science University · NCT03760432 · Data updated 2026-11-12

This study is testing a new way to use laser treatment to improve vision in people with keratoconus by using special imaging to make the procedure more precise.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorOregon Health and Science University
Academic / other
Locations1 site (Portland, Oregon)
StatusRecruiting
StartedJune 20, 2018
Main results expectedDecember 2026
Study endsDecember 2027
Registry record updatedSeptember 9, 2025
Trial IDNCT03760432 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals diagnosed with keratoconus who have a minimum corneal thickness of 410 microns.

Probably not a fit

Patients with concurrent retinal diseases, glaucoma, or other eye conditions that may limit visual outcomes will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the use of Optical Coherence Tomography (OCT) to guide laser custom corneal collagen cross-linking (CXL) in patients with keratoconus. By measuring corneal thickness and other parameters, the study aims to enhance the precision of the CXL procedure, which is designed to reduce corneal aberrations and improve visual outcomes. The research will evaluate the effectiveness of this approach in comparison to traditional methods, particularly focusing on the impact of using mitomycin-C during the procedure.

Why it matters

Potential benefit: If successful, this approach could lead to improved vision and reduced corneal haze for patients with keratoconus.

How similar studies have gone: Previous studies have shown promising results with collagen cross-linking techniques, but this specific approach using OCT guidance is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of keratoconus
* Minimum corneal thickness of 410 microns

Exclusion Criteria:

* Inability to maintain fixation for OCT imaging
* Inability to commit to required study visits
* Inability to give informed consent
* Eyes with concurrent retinal diseases, glaucoma, or other eye conditions that may limit the visual outcome after surgery
* Mature cataracts if found to limit visual potential to worse than 20/40

Where it's running

  • Oregon Health & Science University
    Portland, Oregon, United States
    Recruiting

Study contacts

  • Principal investigator: David Huang, MD, PhD — Oregon Health and Science University
  • Study coordinator: Denzil Romfh, OD
  • Email: romfhd@ohsu.edu
  • Phone: 503-494-4351

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.