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What is Congenital hereditary endothelial dystrophy and explain in detail?
Congenital hereditary corneal dystrophy (CHED) is a form of corneal endothelial dystrophy that presents at birth.
CHED was previously subclassified into two subtypes: CHED1 and CHED2. However in 2015, the International Classification of Corneal Dystrophies (IC3D) renamed the condition "CHED1" to become posterior polymorphous corneal dystrophy, and renamed the condition "CHED2" to become, simply, CHED