Histological Comparative Analysis of Bowman Layer Grafts Procured Using 3 Different Techniques.
Journal
Cornea
ISSN: 1536-4798
Titre abrégé: Cornea
Pays: United States
ID NLM: 8216186
Informations de publication
Date de publication:
01 Jul 2023
01 Jul 2023
Historique:
received:
01
11
2022
accepted:
20
01
2023
medline:
7
6
2023
pubmed:
19
4
2023
entrez:
18
4
2023
Statut:
ppublish
Résumé
The objective of this study is to perform a histological analysis of Bowman layer (BL) grafts. BL grafts were procured from 13 human cadaver corneal tissues using 3 different donor preparation techniques. Subsequently, the grafts were fixed in 10% buffered formalin phosphate and embedded in paraffin. Hematoxylin and eosin sections of BL grafts were obtained and analyzed under a light microscope. BL and full graft thickness were measured using an image-processing software. All 13 BL grafts contained residual anterior stromal tissue. BL stripping using Kelman-McPherson and Moorfield forceps (technique 3) achieved the thinnest graft thickness with a mean full graft thickness of 18.7 μm (95% confidence interval [CI], -9.8 to 47.2) at the thinnest point of the graft, whereas BL procurement using the Melles lamellar dissector (technique 2) led to the highest mean full graft thickness of 279.9 μm (95% CI, 251.4-308.5) even at the thinnest area of the graft. By contrast, BL dissection using a blunt dissector (technique 1) provided a mean full graft thickness of 70.2 μm (95% CI, 40.4-100.1) at the graft's thinnest point. Although peripheral graft tears occurred in 50%, 50%, and 100% of techniques 1, 2, and 3, respectively, intact 6.25-mm diameter BL grafts could be secured in 50%, 100%, and 80% of techniques 1, 2, and 3, respectively. None of the techniques used led to the procurement of pure BL grafts devoid of the anterior stroma. Peripheral scoring with a thin needle and tissue manipulation with Kelman-McPherson and Moorfield forceps led to the thinnest grafts in this study.
Identifiants
pubmed: 37070929
doi: 10.1097/ICO.0000000000003260
pii: 00003226-202307000-00011
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
888-893Informations de copyright
Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.
Déclaration de conflit d'intérêts
The authors have no funding or conflicts of interest to disclose.
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