Abstract:
An ophthalmic patient interface system includes an interface device and an ocular device. The interface device includes a frame having a first end and a second end, a lens disposed at the first end, and a skirt affixed to the first end. The second end is adapted to couple with a surgical laser system, and the skirt is adapted to seal against an anterior surface of an eye. The ocular device includes magnifying optics and is adapted to be removably seated within the second end. The magnifying optics image a region on a corneal side of the lens when the ocular device is seated within the second end.
Abstract:
A system and method of resecting corneal tissue for transplantation is disclosed. In each of the recipient cornea and the donor cornea, an annular incision is made at a predetermined incision depth. A first sidecut incision is made in each cornea, running from the outer periphery of the annular incision to one of the anterior corneal surface or the posterior corneal surface. The first sidecut incision forms an acute angle with the annular incision. A second sidecut incision is also made in each cornea, running from the inner periphery of the annular incision to the other of the anterior corneal surface or the posterior corneal surface. The second sidecut incision forms an acute angle with the annular incision. The combination of the incisions in each cornea resects corneal tissue from the recipient cornea and donor tissue from the donor cornea. The donor tissue is grafted into the recipient cornea.
Abstract:
An ophthalmic patient interface system includes an interface device and an ocular device. The interface device includes a frame having a first end and a second end, a lens disposed at the first end, and a skirt affixed to the first end. The second end is adapted to couple with a surgical laser system, and the skirt is adapted to seal against an anterior surface of an eye. The ocular device includes magnifying optics and is adapted to be removably seated within the second end. The magnifying optics image a region on a corneal side of the lens when the ocular device is seated within the second end.
Abstract:
A method of transplanting a cornea from a donor to a recipient is disclosed. An undercut is incised within stromal tissue of the donor cornea. Following formation of the undercut, the donor cornea is grafted onto a recipient. The undercut may be formed before or after the cornea is removed from the donor, and is preferably formed by photoaltering the stromal tissue using a laser. A sidecut may also be incised in the donor cornea, thereby forming a corneal flap, prior to grafting. In addition, a corneal section may be excised from the donor cornea using a trephine, a laser, or other appropriate surgical equipment.
Abstract:
A system and method for resecting and transplanting corneal tissue is disclosed. In a recipient cornea, a resection depth from the anterior surface of the recipient cornea is determined based upon a biomechanical model of the recipient cornea. A resection incision for resecting a posterior portion of the recipient cornea is made at the resection depth. Preferably, the incision is made using a surgical laser. Optionally, a contact lens may be placed against the anterior surface of the recipient cornea, wherein the shape of the anterior surface is conformed to the shape of the contact lens.
Abstract:
A method of transplanting a cornea from a donor to a recipient is disclosed. An undercut is incised within stromal tissue of the donor cornea. Following formation of the undercut, the donor cornea is grafted onto a recipient. The undercut may be formed before or after the cornea is removed from the donor, and is preferably formed by photoaltering the stromal tissue using a laser. A sidecut may also be incised in the donor cornea, thereby forming a corneal flap, prior to grafting. In addition, a corneal section may be excised from the donor cornea using a trephine, a laser, or other appropriate surgical equipment.