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Your journey
1What's a trial
4Get in touch
More info
You can access this
clinical trial
if you have
Myopia or Astigmatism
and you are
between 21 and 60
years old
The primary goal of this phase is to monitor the long-term effects.
The treatment is already on the market.
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The purpose

The purpose of the study is to compare the results of LASIK surgery when using Alcon Allegretto wavefront-guided excimer laser system compared to AMO Visx Custom wavefront-guided excimer laser system in patients with nearsightedness with and without astigmatism.

Provided treatments

  • Procedure: Wavefront-guided LASIK - Allegretto
  • Procedure: Wavefront-guided LASIK - AMO

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: NCT01454843. The sponsor of the trial is Stanford University and it is looking for 60 volunteers for the current phase.
Official trial title:
A Prospective Eye to Eye Comparison of LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser Versus AMO Visx Wavefront-Guided Excimer Laser