US Patent 7377917 Feedback control of thermokeratoplasty treatments

A microwave thermokeratoplasty system uses an applicator having embedded sensors that provide feedback signals to a controller. The controller interprets these feedback signals to dynamically adjust or cease a keratoplasty operation. The system uses a microwave applicator that is specially adapted for direct application of energy to an eye in the course of treatment. The applicator is formed of discrete zones or sectors that are selectively controlled in an individual manner.