Laser Scanning In Vivo Confocal Microscopy of Clear Grafts after Penetrating Keratoplasty.

Abstract:

PURPOSE:To evaluate the changes of keratocytes and dendritic cells in the central clear graft by laser scanning in vivo confocal microscopy after penetrating keratoplasty (PK). METHODS:Thirty adult subjects receiving PK at Shandong Eye Institute and with clear grafts and no sign of immune rejection after surgery were recruited into this study, and 10 healthy adults were controls. The keratocytes and dendritic cells in the central graft were evaluated by laser scanning confocal microscopy, as well as epithelium cells, keratocytes, corneal endothelium cells, and corneal nerves (especially subepithelial plexus nerves). RESULTS:Median density of subepithelial plexus nerves, keratocyte density in each layer of the stroma, and density of corneal endothelium cells were all lower in clear grafts than in controls. The dendritic cells of five (16.7%) patients were active in Bowman's membrane and stromal membrane of the graft after PK. CONCLUSIONS:Activated dendritic cells and Langerhans cells could be detected in some of the clear grafts, which indicated that the subclinical stress of immune reaction took part in the chronic injury of the clear graft after PK, even when there was no clinical rejection episode.

journal_name

Biomed Res Int

authors

Wang D,Song P,Wang S,Sun D,Wang Y,Zhang Y,Gao H

doi

10.1155/2016/5159746

subject

Has Abstract

pub_date

2016-01-01 00:00:00

pages

5159746

eissn

2314-6133

issn

2314-6141

journal_volume

2016

pub_type

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