Corneal reshaping by radio frequency current: numerical model studies

John Anthony Pearce

doi:10.1117/12.427850

1 June 2001 Corneal reshaping by radio frequency current: numerical model studies

John Anthony Pearce

Proceedings Volume 4247, Thermal Treatment of Tissue: Energy Delivery and Assessment; (2001) https://doi.org/10.1117/12.427850
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

The cornea may be reshaped to correct for hyperopia by selective shrinkage of collagen in the stroma using radio frequency (RF) current from a needle electrode. Pulsed current is used to maximize therapeutic effect while minimizing radiating thermal damage. Finite difference numerical models of the electric fields and resulting thermal events were used to study the process parameters. The models were calibrated by comparison to histologic data using predicted and measured loss of birefringence in collagen as the standard of comparison.

Citation Download Citation

John Anthony Pearce "Corneal reshaping by radio frequency current: numerical model studies", Proc. SPIE 4247, Thermal Treatment of Tissue: Energy Delivery and Assessment, (1 June 2001); https://doi.org/10.1117/12.427850

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