Presbyopia treatment equipment

Presbyopia treatment equipment

  • CN 100,473,366 C
  • Filed: 06/29/1995
  • Issued: 04/01/2009
  • Est. Priority Date: 06/29/1994
  • Status: Active Grant
First Claim
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1. correct presbyopic equipment with surgical operation for one kind, it is characterized in that it comprises:

  • Prepare to melt the device that makes marks on that part of erosion at patient'"'"'s eye;

    This device that makes marks is eyeshield shape, has two concentric circulars, and the overall diameter in two concentric circulars is 10.5 millimeters, and interior diameter is the 3-5 millimeter;

    At least cut a part of cornea of patient'"'"'s eye, so that the device that corneal stroma is come out;

    An and annular section that is used to melt the above-mentioned corneal stroma of erosion, device with a laser instrument, wherein, melt erosion and be that irradiation with radiation with laser instrument carries out on corneal stroma, be no more than at diameter by laser instrument on 3.5 millimeters the substrate and cause an annular to melt the erosion district, the variation of its middle section is between 2 to 3 millimeters;

    The above-mentioned erosion device that melts comprises on the central area that is placed on corneal stroma, with the screened film of the radiation that stops laser instrument, and for the laser beam of laser radiation preestablishes its diameter, melts the device that erosion is distinguished so that form the annular of a preset width and the degree of depth.

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