Application of the holmium:YAG laser for refractive surgery

Autor: David Muller, John D. Hunkeler, Michael C. King, Daniel S. Durrie, Alex C. Sacharoff, Theo Seiler
Rok vydání: 1992
Předmět:
Zdroj: Ophthalmic Technologies II.
ISSN: 0277-786X
DOI: 10.1117/12.137404
Popis: We report on two clinical trials, one involving 10 patients in the United States and the other in Berlin, Germany with 15 patients, all treated for hyperopia with a new laser surgical procedure known as laser thermokeratoplasty (LTK). The procedure involves making a circular array of corneal coagulations using an Ho:YAG laser, fiber-optic handpiece, and contact focusing tip. The extent of steepening of central corneal curvature is controlled by the diameter of the treatment zone. The LTK procedure induces an immediate and significant reduction in hyperopic refractive error. Although the clinical investigations are at an early stage, results of the clinical trials indicate that the LTK procedure may prove to be a reliable means of effecting a permanent change in refraction in patients suffering from hyperopic refractive disorders.
Databáze: OpenAIRE