The K-Map Study, Global Prevalence of KC (NCT03115710)
🩺 Plain-English Summary (8th-Grade Level)
Keratoconus is a ocular disease classified under ectatic diseases which often results in bilateral and asymmetrical corneal distortion. It usually affects patients at young age and can cause severe visual loss. The overall goal of this study is to assess the prevalence of keratoconus (KC) in children and adolescents in various regions of the world based on modern tomographic imaging methods, and to verify whether the occurrence rates reported from literature should be corrected. Our hypothesis is that the prevalence of the disease is much higher than that traditionally reported. At each site, corneal tomography examinations (Pentacam) will be performed bilaterally in children and adolescents, who are not ill or with any ophthalmological symptom. The population to be studied will be composed of children and adolescents on medical visits for non-ophthalmologic reasons, aged between 6 and 20 years. Multiple cities, from different continents (North America, South America, Asia and Europe) will participate.
Who can join: Review the eligibility criteria below.
Location: USC Roski Eye Institute — Los Angeles, California
Age range: 6 Years to 23 Years
🧪 Interventions in This Study
- Rotating Scheimpflug camera (Pentacam HR) (DIAGNOSTIC_TEST)
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (12 Sites)
- USC Roski Eye Institute — Los Angeles, California
- Eye Hospital of Wenzhou Medical College — Wenzhou,
- Clinical Research Facility — Zagreb,
- Clinical Research Facility — Alexandria,
- Clinical Research Facility — Homburg,
- Clinical Research Facility — Isfahan,
- Clinical Research Facility — Amman,
- Clinical Research Facility — Monterrey,
- Clinical Research Facility — Lima,
- Ufa Eye Research Intitute — Ufa,
- King Saud University — Riyadh,
- Clinical Research Facility — Bukhara,
📞 Contact the Study Coordinator
Phone: +41 44 741 81 81
Email: fhafezi@elza-institute.com
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Keratoconus
- Initial Correction Keratoconus — Chicago, Illinois
- McNeel Eye Center Corneal Crosslinking Study — Boise, Idaho
- Assessing Patient Engagement in Keratoconus Clinical Research — San Francisco, California
- Outcomes of CTAK Surgery — Palo Alto, California
- A Randomized Clinical Trial of Ex Vivo Corneal Cross-Linking of Donor Keratoplasty Tissue for Keratoconus Used for Keratoplasty in Keratoconus Patients — Boston, Massachusetts
- OCT in Diagnosis of Irregular Corneas — Portland, Oregon
Explore by condition: All Keratoconus clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.