Document Detail


Cellular and subbasal nerve alterations in early stage Fuchs' endothelial corneal dystrophy: an in vivo confocal microscopy study.
MedLine Citation:
PMID:  23154490     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To analyze the morphology and density of corneal epithelial cells, keratocytes, and subbasal nerves, in patients with early stage Fuchs' endothelial corneal dystrophy (FECD) by in vivo confocal microscopy (IVCM).
METHODS: IVCM (Confoscan 4, Nidek, Inc.) of the central cornea was performed in 30 corneas of 30 patients with early stage FECD and 13 corneas of 13 normal controls. Images were analyzed for morphology and density of the superficial and basal epithelial cells, keratocyte density, endothelial cell density (ECD), as well as subbasal corneal nerve parameters. Central corneal thickness (CCT) was measured in all patients and normals by ultrasound pachymetry.
RESULTS: The ECD was significantly lower (-45.5%, P<0.001) in FECD patients as compared with controls. Total number of nerves and main nerve trunks were significantly reduced (-46.3%, P<0.001; -39.7%, P<0.001) in patients with FECD. Posterior keratocyte density was significantly higher in FECD patients (P<0.001). Significant inverse correlations were found between CCT and total number of nerves (r=-0.69, P<0.001), CCT and main nerve trunks (-0.47, P=0.016), as well as CCT and total nerve length (r=-0.62, P=0.006). Significant correlation was found between ECD and total number of nerves (r=0.44, P=0.012) as well as between ECD and main nerve trunks (r=0.65, P<0.001).
CONCLUSIONS: IVCM demonstrates alterations in corneal innervation in patients with early stage FECD, suggesting a potential role of corneal nerves in the pathogenesis of FECD. Additional studies are required to investigate whether subbasal nerve alterations are caused by nonspecific corneal edema, from FECD-induced decrease in ECD, or potentially leading to loss of endothelial cells.
Authors:
L M Schrems-Hoesl; W A Schrems; A Cruzat; B M Shahatit; H A Bayhan; U V Jurkunas; P Hamrah
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2012-11-16
Journal Detail:
Title:  Eye (London, England)     Volume:  27     ISSN:  1476-5454     ISO Abbreviation:  Eye (Lond)     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-10     Completed Date:  2013-06-04     Revised Date:  2014-04-23    
Medline Journal Info:
Nlm Unique ID:  8703986     Medline TA:  Eye (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  42-9     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Cornea / innervation*
Corneal Keratocytes / cytology
Corneal Pachymetry
Cross-Sectional Studies
Endothelium, Corneal / cytology
Epithelium, Corneal / cytology
Female
Fuchs' Endothelial Dystrophy / pathology*,  ultrasonography
Humans
Male
Microscopy, Confocal
Middle Aged
Ophthalmic Nerve / pathology*
Retrospective Studies
Grant Support
ID/Acronym/Agency:
K08 EY020575/EY/NEI NIH HHS; K08-EY020575/EY/NEI NIH HHS; K12-EY016335/EY/NEI NIH HHS; L30 EY021919/EY/NEI NIH HHS; R01 EY020581/EY/NEI NIH HHS
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