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  • Title: ULTRAWIDEFIELD AUTOFLUORESENCE IN ABCA4 STARGARDT DISEASE.
    Author: Klufas MA, Tsui I, Sadda SR, Hosseini H, Schwartz SD.
    Journal: Retina; 2018 Feb; 38(2):403-415. PubMed ID: 28248825.
    Abstract:
    PURPOSE: To report the ultrawidefield fundus autofluorescence (UWF-FAF) patterns in ABC4A Stargardt disease. METHODS: A retrospective cohort study of patients with a clinical diagnosis of Stargardt disease, confirmed ABCA4 genotype, and ultrawidefield fundus autofluorescence imaging using an Optos P200Tx. Four independent graders evaluated the images. Ultrawidefield fundus autofluorescence images were evaluated for the presence of posterior pole and peripheral findings, and were classified into one of three types (Type I: lesions confined to the macula with no peripheral findings; Type II: macular atrophy with flecks only in the periphery; Type III: macular atrophy and varying degrees of peripheral atrophy). RESULTS: Ultrawidefield fundus autofluorescence was performed on 58 eyes of 29 patients. Reviews of images revealed the presence of peripheral (outside the 55° view of standard nonwidefield FAF imaging) alterations on UWF-FAF in 76% of eyes. Overall, the UWF-FAF pattern was classified as Type I in 24% eyes (14/58), Type II in 24% (14/58), and Type III in 52% (30/58). The most common genetic mutations were c.2588G>C (6/29 patients, 20.7%), and c.5882G>A (5/29 patients, 17.2%). CONCLUSION: Ultrawidefield fundus autofluorescence reveals peripheral changes in the majority of patients with Stargardt disease. Peripheral FAF changes may have implications for diagnosis, prognosis, and management of individual patients with Stargardt disease.
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