Clinical trial Recruiting at 1 site Interventional Ages 18 to 60

Implanting intra-corneal rings to correct high cylinder errors in non-ectatic corneas

Official title: Use of Intra-corneal Ring Segments in Management of Non-ectatic Corneas With High Cylinder

Run by Sohag University · NCT06963099 · Data updated 2026-11-12

This study tests whether implanting special rings in the eye can help people with significant astigmatism see better without needing glasses or contacts.

Quick facts

Study typeInterventional
Ages18 Years to 60 Years
SexAll
Enrollment50 (estimated)
SponsorSohag University
Academic / other
Locations1 site (Sohag)
StatusRecruiting
StartedDecember 1, 2023
Main results expectedJuly 2025
Study endsJuly 2025
Registry record updatedMay 14, 2025
Trial IDNCT06963099 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals with non-ectatic corneas who have high cylinder errors.

Probably not a fit

Patients with corneal ectasia will not benefit from this study as they are excluded from participation.

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

What this trial studies

This study focuses on the implantation of INTACS, which are intra-corneal rings, to correct high cylinder errors in patients with non-ectatic corneas. The approach aims to improve visual acuity and reduce the need for corrective lenses in individuals suffering from significant astigmatism. The methodology involves a surgical procedure where these rings are placed within the cornea to reshape its curvature. The study seeks to evaluate the effectiveness and safety of this intervention for the targeted patient population.

Why it matters

Potential benefit: If successful, this intervention could significantly improve vision for patients with high cylinder errors, enhancing their quality of life.

How similar studies have gone: While there may be limited data on this specific approach, similar interventions using intra-corneal rings have shown promise in correcting refractive errors.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Non ectatic corneas with high cylinder error

Exclusion Criteria:

* Corneal ectasia

Where it's running

  • Elshimaa A.Mateen
    Sohag, Egypt
    Recruiting

Study contacts

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.