Corneal Healing After Excimer Laser Surface Ablation

Abstract

The special properties of far-uv light sources include tissue removal without major temperature rise and preparation of a surface well suited for cell locomotion and adherence. We have evaluated the use of the 193 nm excimer laser for large area surface ablation of the cornea. We have found that tissue removal can be accomplished with successful wound healing and corneal function by selecting the proper laser parameters. Available data suggest that an ablative excimer laser of uniform and predictable beam power can supplant existing procedures for treating some corneal dystrophies, and preparing graft beds. The natural healing properties of the cornea aid in such procedures yet may make minor refractive change difficult to accomplish.