Laser welding in penetrating keratoplasty and cataract surgery of pediatric patients: Early results

Francesca Rossi, Roberto Pini, Luca Menabuoni, Alex Malandrini, Annalisa Canovetti, Ivo Lenzetti, Paolo Capozzi, Paola Valente, Luca Buzzonetti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Diode laser welding of ocular tissues is a procedure that enables minimally invasive closure of a corneal wound. This procedure is based on a photothermal effect: a water solution of Indocyanine Green (ICG) is inserted in the surgical wound, in order to stain the corneal tissue walls. The stained tissue is then irradiated with a low power infrared diode laser, delivering laser light through a 300-μm core diameter optical fiber. This procedure enables an immediate closure of the wounds: it is thus possible to reduce or to substitute the use of surgical threads. This is of particular interest in children, because the immediate closure improves refractive outcome and anti-amblyopic effect; moreover this procedure avoids several general anaesthesia for suture management. In this work, we present the first use of diode laser welding procedure in paediatric patients. 5 selected patients underwent cataract surgery (Group 1), while 4 underwent fs-laserassisted penetrating keratoplasty (Group 2). In Group 1 the conventional surgery procedure was performed, while no stitches were used for the closure of the surgical wounds: these were laser welded and immediately closed. In Group 2 the donor button was sutured upon the recipient by 8 single stitches, instead of 16 single stitches or a running suture. The laser welding procedure was performed in order to join the donor tissue to the recipient bed. Objective observations in the follow up study evidenced a perfect adhesion of the laser welded tissues, no collateral effects and an optimal restoration of the treated tissues.

Original languageEnglish
Title of host publicationProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8567
DOIs
Publication statusPublished - 2013
Event23rd Conference on Ophthalmic Technologies - San Francisco, CA, United States
Duration: Feb 2 2013Feb 3 2013

Other

Other23rd Conference on Ophthalmic Technologies
CountryUnited States
CitySan Francisco, CA
Period2/2/132/3/13

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Keywords

  • cataract surgery
  • laser welding
  • paediatric patients
  • penetrating keratoplasty
  • suture-less surgery

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

Cite this

Rossi, F., Pini, R., Menabuoni, L., Malandrini, A., Canovetti, A., Lenzetti, I., Capozzi, P., Valente, P., & Buzzonetti, L. (2013). Laser welding in penetrating keratoplasty and cataract surgery of pediatric patients: Early results. In Progress in Biomedical Optics and Imaging - Proceedings of SPIE (Vol. 8567). [85671R] https://doi.org/10.1117/12.2003553