Femtosecond laser posterior lamellar keratoplasty: A laboratory model

Melvin A. Sarayba, Tibor Juhasz, Roy S. Chuck, Teresa S. Ignacio, Thao B. Nguyen, Paula Sweet, Ronald M. Kurtz

Research output: Contribution to journalArticle

51 Scopus citations

Abstract

Purpose: To evaluate feasibility of femtosecond laser application in posterior lamellar keratoplasty. Methods: To evaluate the laser's effectiveness through opaque corneas, anterior corneal caps were resected from opaque corneas induced with 80% acetone solution. To evaluate the femtosecond laser posterior lamellar keratoplasty surgical procedure, human corneoscleral rims were mounted on an artificial anterior chamber. After corneal pachymetry, the femtosecond laser was used to create a 6-mm-diameter, 200-μm-thick endostromal lenticule. Access to the lenticule was provided by a small perilimbal surface opening, also created by the laser. The lenticule was removed using a pair of corneal forceps. A donor lenticule of similar dimensions was created, its endothelial surface coated with viscoelastic, inserted, and positioned on the recipient bed. Two sutures were placed to seal the small surface opening. Results: The femtosecond laser produced an effective and smooth dissection through opaque corneas even at deeper settings. Graft transplantation was fairly simple and effective. Conclusion: Femtosecond laser posterior lamellar keratoplasty is a procedure that may provide an alternative to penetrating keratoplasty or the technically challenging manual posterior lamellar keratoplasty.

Original languageEnglish (US)
Pages (from-to)328-333
Number of pages6
JournalCornea
Volume24
Issue number3
DOIs
StatePublished - Apr 2005

Keywords

  • Femtosecond
  • Keratoplasty
  • Lamellar
  • Laser

ASJC Scopus subject areas

  • Ophthalmology

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    Sarayba, M. A., Juhasz, T., Chuck, R. S., Ignacio, T. S., Nguyen, T. B., Sweet, P., & Kurtz, R. M. (2005). Femtosecond laser posterior lamellar keratoplasty: A laboratory model. Cornea, 24(3), 328-333. https://doi.org/10.1097/01.ico.0000138830.50112.f4