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: Alagille syndrome (AS) is a multisystem disorder associated with a range of ocular anomalies affecting the anterior and posterior segments. While chorioretinal abnormalities have been reported in Alagille Syndrome, identification of macular dystrophy and detailed clinical and electrophysiologic descriptions are scarce. : A retrospective review was conducted to identify patients with a diagnosis of AS and retinal disease who were evaluated in the Division of Pediatric Ophthalmology, Strabismus, and Adult Motility at UPMC Children’s Hospital of Pittsburgh. Criteria of AS included biopsy-proven bile duct hypoplasia, presence of major clinical features of AS, and molecular confirmation of the  JAG1  gene. : This cohort included three patients, two females and one male, diagnosed with  JAG1 -Alagille syndrome. The diagnosis was made before 2 years of life in all patients. The mean follow-up period in our center was 8 years. All patients were found to have retinal pigmentary changes, macular atrophy, choroidal thinning, optic disc anomalies, and progressive decrease in vision. Marked retinal and macular dysfunction were found in electrophysiological studies. : Three patients with molecularly confirmed Alagille syndrome demonstrated unusual retinal and macular findings, with two showing progressive vision loss. Due to the rarity of retinal findings in AS and the observed progression of disease in our patients, clinical genetic testing for retinal dystrophies could be completed in two cases. These investigations failed to reveal a separate molecular cause for the observed retinal dystrophy, helping to confirm the association with  JAG1 -related AS.

Macular atrophy in JAG1- related Alagille syndrome: a case series