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Nonsyndromic primary newborn glaucoma, the most severe form of primary congenital glaucoma, typically is bilateral and often the result of CYP1B1 mutations, particularly in certain consanguineous populations. Truly unilateral cases are uncommon and genetically not well studied. During a 9-year period, we tested 5 consecutive children with unilateral primary newborn glaucoma from Saudi Arabia, where CYP1B1 mutations are the cause for 91% of bilateral primary newborn glaucoma cases. None of these children with unilateral primary newborn glaucoma harbored CYP1B1 mutations, suggesting that in this population the pathogenesis of unilateral disease differs from that of bilateral disease.
Division of Pediatric Ophthalmology, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia. arif.khan@mssm.edu
Full article9.1.1 Congenital glaucoma, Buphthalmos (Part of: 9 Clinical forms of glaucomas > 9.1 Developmental glaucomas)
3.4.2 Gene studies (Part of: 3 Laboratory methods > 3.4 Molecular genetics)