To date, seven genes have been identified to be associated with suture cataracts, including BFSP2, CRYBA1/A3, CRYBBA, CRYBB2, GJA8, FTL, CRYGA. Among these genes, almost all the mutations of BFSP2 are associated with suture cataract phenotype. Here, GJA8 is linked to cataract.