Combined microwave heating and surface cooling of the cornea
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United States of America Patent
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Nov 21, 1989
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N/A
app pub date -
Jun 28, 1988
filing date -
Jun 28, 1988
priority date (Note) -
Expired
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Abstract
A non-invasive method and apparatus of reshaping the cornea to correct hyperopia, keratoconus, or myopia is described. The central stroma of the cornea is heated by microwave electromagnetic energy to the shrinkage temperature of collagen. The microwave applicator for heating stroma comprises an open-ended, coaxial antenna driven at 2450 MHz with apparatus for surface cooling of the cornea by flow of saline transverse to the antenna axis.
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