Surgery – Miscellaneous – Methods
Patent
1990-03-02
1992-02-25
Thaler, Michael H.
Surgery
Miscellaneous
Methods
606148, 606166, A61B 1732
Patent
active
050904256
ABSTRACT:
A method of controlling astigmatism during eye surgery is provided which includes forming a wave-like incision prior to conducting surgery. Once the surgery has been completed, the wave-like incision may be stitched in a direction which is substantially parallel to the lengthwise direction of incision to avoid generating a force upon the cornea, which would tend to induce astigmatism. Astigmatism can be induced by stitching in a direction which tends to displace the tissue on opposite sides of the incision by a selected distance. Indicator lines may be applied with a sterile dye prior to surgery to allow the surgeon to insure that the tissue is not displaced when the incision is closed, or is displaced by a selected distance as may be determined by viewing the indicator lines. A marking tool is provided for marking both a wave-like outline which is used for making the incision and the indicator lines for determining relative tissue displacement.
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"Corneal Surgery", Louis J. Girard, 1981, pp. 149-153.
Visitec 1990 Catalog cover p. 21.
Journal of Ophthalmic Nursing & Technology 1990; vol. 9, No. 4, p. 179.
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