Cornea plana congenita is a rare hereditary anomaly in which the normal protrusion of the cornea from the sclera is missing. Clinical features include hyperopia, slight microcornea, an extended limbus zone, and arcus lipoides seen even before the age of 20. Cornea plana congenita occurs in a mild autosomal dominant (CNA1) and a more severe autosomal recessive (CNA2) form. CNA2 has a high prevalence in the Finnish population due to strong founder effect.
Category
Congenital malformation
Brite
Human diseases in ICD-11 classification [BR:br08403]
20 Developmental anomalies
Structural developmental anomalies primarily affecting one body system
Structural developmental anomalies of the eye, eyelid or lacrimal apparatus
LA11 Structural developmental anomalies of the anterior segment of eye
H01029 Cornea plana congenita