Last updated on May 2020

Visual Outcomes of Topography Guided Photorefractive Keratectomy (PRK) for Treatment of Patients With Irregular Cornea


Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions: Irregular Astigmatism
  • Age: - 100 Years
  • Gender: Male or Female

Inclusion Criteria:

  • Patients with irregular corneal astigmatism caused by:
  • Trauma.
  • Non - Central Corneal Scars.
  • Previous corneal surgery.
  • With No other abnormalities in the eye.
  • Patient is willing to enter the study and sign a consent.

Exclusion Criteria:

  • Patients with central corneal scars.
  • Patients with central haze interfering with visual acuity.
  • Patients with ectasia at corneal graft margins.
  • Patients with irregular astigmatism caused by corneal ectasia or keratoconus.
  • Patients had refractive surgery with ablations leaving a residual corneal thickness less than 250 m.

Recruitment Status: Closed


Brief Description Eligibility Contact Research Team


Volunteer Sign-up

Sign up for our FREE service to receive email notifications when clinical trials are posted in the medical category of interest to you.