Analysis of the Genotype/Phenotype Relationship in the Fuchs' Corneal Endothelial Dystrophy in France

Genotyping will measure the triple nucleotide repeat in the TCF4 gene and search for other known mutations in other genes Blood sample will be performed (genetic analyses).

Histology will be performed on flat mounted Descemet membrane obtained after Descemetorhexis

Collection of data of examination for diagnosis of the Fuchs Endothelial Corneal Dystrophy (FECD) including slit lamp results will be performed.