Deep stroma investigation by confocal microscopy

Francesca Rossi, Francesca Tatini, Roberto Pini, Paola Valente, Roberta Ardia, Luca Buzzonetti, Annalisa Canovetti, Alex Malandrini, Ivo Lenzetti, Luca Menabuoni

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

Abstract

Laser assisted keratoplasty is nowadays largely used to perform minimally invasive surgery and partial thickness keratoplasty [1-3]. The use of the femtosecond laser enables to perform a customized surgery, solving the specific problem of the single patient, designing new graft profiles and partial thickness keratoplasty (PTK). The common characteristics of the PTKs and that make them eligible respect to the standard penetrating keratoplasty, are: the preservation of eyeball integrity, a reduced risk of graft rejection, a controlled postoperative astigmatism. On the other hand, the optimal surgical results after these PTKs are related to a correct comprehension of the deep stroma layers morphology, which can help in the identification of the correct cleavage plane during surgeries. In the last years some studies were published, giving new insights about the posterior stroma morphology in adult subjects [4,5]. In this work we present a study performed on two groups of tissues: one group is from 20 adult subjects aged 59 ± 18 y.o., and the other group is from 15 young subjects, aged 12±5 y.o. The samples were from tissues not suitable for transplant in patients. Confocal microscopy and Environmental Scanning Electron Microscopy (ESEM) were used for the analysis of the deep stroma. The preliminary results of this analysis show the main differences in between young and adult tissues, enabling to improve the knowledge of the morphology and of the biomechanical properties of human cornea, in order to improve the surgical results in partial thickness keratoplasty.

Original languageEnglish
Title of host publicationOphthalmic Technologies XXV
PublisherSPIE
Volume9307
ISBN (Print)9781628413977
DOIs
Publication statusPublished - 2015
Event25th Conference on Ophthalmic Technologies - San Francisco, United States
Duration: Feb 7 2015Feb 8 2015

Other

Other25th Conference on Ophthalmic Technologies
CountryUnited States
CitySan Francisco
Period2/7/152/8/15

Keywords

  • anterior lamellar keratoplasty
  • confocal microscopy
  • deep stroma
  • endothelial keratoplasty

ASJC Scopus subject areas

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

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