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Laser PRK for Herpetic Corneal Scar to 20/20 vision

  Channels: General, Laser Vision Correction, Refractive | Posted 9/13/2012

In our experience of more than 10 years of performing laser PRK on corneal scars, we have found that that most herpetic scars become part of the cornea. I begin with rapid movements to remove the epithelium in an atraumatic fashion, leaving the scarred area for the last. While approaching the scarred area, I come in from the periphery literally raising the edges of the scar to determine whether this is an "on-cornea" scar (layered anterior to the cornea) or an "in-cornea" scar (one that has blended with the rest of the cornea). This scar is in-cornea, and I approach it as I would any other refractive error, irrespective of its opacity. I perform laser PRK with mitomycin-C application. Upon completion of the laser procedure and following the application of balance salt solution, the ring light reflex on the cornea, which was a D-shaped, can be seen now as a perfect circle. This reflex is a direct correlate to the improvement in the visual quality of the patient’s eye.

Cornea • Photorefractive Keratectomy, PRK

Unexpected Flattening After Post-PRK Haze Removal

Arun C. Gulani, MD; David Wallace, MD; Ming Wang, MD, PhD; and Aleksandar Stojanovic, MD


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