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Your journey
1What's a trial
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More info
You can access this
clinical trial
if you have
Keratoconus, Ectasia or Corneal Ectasia
and you are
between 14 and 55
years old
This is a second phase trial assessing
efficacy and side effects of the new treatment.
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The purpose

The primary objective of this study is to evaluate two different ultraviolet (UV) dosing regimens for corneal collagen cross linking to slow the progressive changes in corneal curvature in eyes with progressive keratoconus or post-refractive surgery ectasia.

Provided treatments

  • Device: UV-X Light
  • Drug: Riboflavin
  • Device: UV-X Light
  • Drug: Riboflavin

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01325298. The sponsor of the trial is Mercy Center for Corrective Eye Surgery and it is looking for 250 volunteers for the current phase.
Official trial title:
UVA-Riboflavin Crosslinking Treatment of Corneal Ectasia