Abstract
ABSTRACT: Keratocyte population after cryolathing is one of the factors affecting corneal clarity. We previously developed a controlled rate freeze process that resulted in increased keratocyte survival after cryolathing. Unfortunately, this technique produced an irregular optical surface. To overcome this, we have cut lenticules after freezing using an air turbine handpiece. The handpiece is attached to the Barraquer cryolathe with a modified Levin® tool holder. Preliminary evidence indicates that improved optical surfaces can be produced without causing total keratocyte death.
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