Corneal lathing using the excimer laser and a computer-controlled positioning system: Part II--Variable trephination of corneal buttons.

W Husinsky; S Mitterer; J Altmann; G Grabner; I Baumgartner; F Skorpik; T Asenbauer

PubMed · 1958626

Corneal lathing using the excimer laser and a computer-controlled positioning system: Part II--Variable trephination of corneal buttons.

W Husinsky·S Mitterer·J Altmann·G Grabner·I Baumgartner·F Skorpik·T Asenbauer

Abstract

A new system is presented that allows a variable trephination of donor corneas for the preparation of corneal buttons used in penetrating keratoplasty. With the help of a computer-controlled positioning system that uses high-precision micropositioning elements (both translation and rotational stages) the donor cornea is removed, epithelial side up, in a fixation device in front of a focused excimer laser beam (ArF, lambda = 193 nm). User friendly computer software allows the surgeon to select a variety of parameters (diameter, shape, angle of trephination) of the corneal graft. Histological and electron microscopical data of human corneas trephined with this "Excimer Laser Corneal Shaping System" are presented.

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Cornea Corneal Transplantation Humans Laser Therapy Therapy, Computer-Assisted Journal Article Research Support, Non-U.S. Gov't

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W Husinsky, S Mitterer, J Altmann, G Grabner, I Baumgartner, F Skorpik, T Asenbauer. Corneal lathing using the excimer laser and a computer-controlled positioning system: Part II--Variable trephination of corneal buttons.. https://pubmed.ncbi.nlm.nih.gov/1958626/

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