| 摘要 |
A surgical knife providing enhanced visualization includes an elongated handle, a footplate and a non-transparent blade. The footplate is supported on the handle and has a foot positioned to ride along tissue of a surgical site. The non-transparent blade has a cutting edge and is supported on the handle with at least a portion of the cutting edge extending beyond the foot, to expose the cutting edge for making an incision. The non-transparent blade is visually observable with ease, particularly along a line of sight passing through translucent tissue adjacent an incision. The foot may be constructed of a transparent material to allow direct observation of the blade or the surgical site via a line of sight passing through the transparent foot. These features provide a knife well-suited to making precisely placed and precisely curved incisions of the type required for astigmatic keratotomy and limbal relaxation procedures.
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