Ontology type: schema:ScholarlyArticle
2021-01-04
AUTHORSSamy Al Bourgol, Sandrine Ninotta, Thibaud Garcin, Fabrice Cognasse, Marie-Caroline Trone, Fabien Forest, Gilles Thuret, Philippe Gain
ABSTRACTThe detection of corneas operated on for refractive surgery [LASIK or photorefractive keratectomy (PRK)] will become a major concern for eye banks in the coming years because this surgery is often forgotten during the interview with the deceased's relatives. We present here 2 corneas operated on with PKR and stored successively in organ culture (OC) and in the active storage machine (ASM) that restores intraocular pressure, restores the cornea to its original shape, respects transparency and incorporates non-invasive controls. The 2 corneas of a 49-year-old donor operated 17 years earlier by PRK for -2 and -3 diopters myopia were stored in OC for 14 days and then placed in ASM for 48 h. Thickness map and OCT topography were performed under the 2 storage conditions, histology and electron microscopy were then performed. Traces of PRK remained unnoticed in OC while they were evident in ASM with central epithelial anomaly, central thinning and flattening of central keratometry shown by OCT. Histology and ultrastructure confirmed the absence of Bowman's membrane in the center. By placing the cornea under physiological conditions, and in particular by triggering its deswelling and by restoring its natural curvature, the ASM allows effective detection of subtle refractive surgery traces like those present after PRK. More... »
PAGES479-486
http://scigraph.springernature.com/pub.10.1007/s10561-020-09895-4
DOIhttp://dx.doi.org/10.1007/s10561-020-09895-4
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/33398494
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