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

Inclusion Criteria: For patient group: * \>18 years old * affiliated with or entitled to a social security scheme * having received informed information about the study and having co-signed, with the investigator, a consent to participate in the study * with an Fuchs Endothelial Corneal Dystrophy (FECD) certified by slit lamp examination For control group: * \>18 years old * affiliated with or entitled to a social security scheme * having received informed information about the study and having co-signed, with the investigator, a consent to participate in the study Exclusion Criteria: For patient group: * Patients under guardianship or curatorship * Patient planning to move within the year * With no evidence of ophthalmological pathology requiring intraocular surgery within one year of the first visit * Better initial corrected visual acuity \<1/10 * Not having had intraocular surgery in the 6 months prior to inclusion (after 6 months, the endothelium is considered stabilized) * Not having any other progressive pathology responsible for a decrease in visual acuity (significant cataract Lens Opacities Classification System (LOCS) \>2 ; progressive retinal pathology, in particular age-related macular degeneration, unstabilized macular edema) For control group: * Patients under guardianship or curatorship * with an Fuchs Endothelial Corneal Dystrophy (FECD) certified by slit lamp examination