Any early-onset non-syndromic cataract in which the cause of the disease is a mutation in the AGK gene. The disease is MONDO_0013859 (cataract 38). Also known as: AGK early-onset non-syndromic cataract, CATC5, CTRCT38, autosomal recessive congenital cataract 5, cataract 38, autosomal recessive, cataract type 38, early-onset non-syndromic cataract caused by mutation in AGK.