Abnormal cornea morphology Microcornea UMLS:C0266544 HP:0000482 HP:0100688 SNOMEDCT_US:26098002 Cornea of eye less than 10mm in diameter Note that the cornea's diameter is normally about 9.5-10.0 mm at birth and reaches 10.0-12-5 mm in adulthood. Decreased corneal diameter A congenital abnormality of the cornea in which the cornea and the anterior segment of the eye are smaller than normal. The horizontal diameter of the cornea does not reach 10 mm even in adulthood. UMLS:C1167713