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  • Title: Wide-field fundus autofluorescence imaging to evaluate retinal function in patients with retinitis pigmentosa.
    Author: Ogura S, Yasukawa T, Kato A, Usui H, Hirano Y, Yoshida M, Ogura Y.
    Journal: Am J Ophthalmol; 2014 Nov; 158(5):1093-8. PubMed ID: 25062603.
    Abstract:
    PURPOSE: To study the correlation between the visual fields (VF) and wide-field fundus autofluorescence (FAF) in patients with retinitis pigmentosa (RP). DESIGN: Retrospective, observational, consecutive case series. METHODS: Twenty-four eyes of 12 patients diagnosed with RP were enrolled. The VFs measured by Goldmann perimetry and wide-field FAF images were compared for each eye. The relationship between the areas of hypoautofluorescence on the wide-field FAF images and scotoma on Goldmann perimetry were evaluated. The VF and FAF images in the central 60 degrees were trimmed and superimposed to calculate the percentage agreement between the hypoautofluorescence and the scotomas and between the isoautofluorescence and hyperautofluorescence and the remaining VFs. RESULTS: The areas of hypoautofluorescence on the FAF images were correlated significantly (R = 0.86, P < .001) with the areas of the VF defects on Goldmann perimetry. The mean percentage agreement between the hypoautofluorescence and the scotomas was 91.0% ± 7.7% and that of the isoautofluorescence and hyperautofluorescence with the remaining VFs was 84.5% ± 7.4%. The areas of geographic hypoautofluorescence with or without hyperautofluorescent bands reflected the VF defects, while nummular or mottled hypoautofluorescence without VF defects was seen in 7 eyes. CONCLUSIONS: These results suggested that wide-field FAF imaging is useful to evaluate the remaining retinal function in patients with RP. Abnormal fundus autofluorescence precedes loss of retinal function and is helpful for monitoring disease progression.
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