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Tanna, P; Georgiou, M; Aboshiha, J; Strauss, RW; Kumaran, N; Kalitzeos, A; Weleber, RG; Michaelides, M.
Cross-Sectional and Longitudinal Assessment of Retinal Sensitivity in Patients With Childhood-Onset Stargardt Disease.
Transl Vis Sci Technol. 2018; 7(6):10-10 Doi: 10.1167/tvst.7.6.10 [OPEN ACCESS]
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Co-authors Med Uni Graz: Strauß Rupert
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Abstract:: We assess cross-sectional and longitudinal microperimetry and full-field static perimetry-derived retinal sensitivity with conventional and volumetric indices of retinal function in childhood-onset Stargardt disease (STGD1). Subjects with molecularly confirmed childhood-onset STGD1 underwent full-field static perimetry and/or microperimetry using custom designed grids. Mean sensitivity (MS) and total volume (V_TOT) were computed for each microperimetry test. MS, V_TOT, and central field volume (V₃₀) were computed for each full-field static perimetry test. Subjects under 18 years old at baseline were classified as children and subjects 18 years or older as adults. A total of 43 children (mean age at baseline, 13.0 years; range, 8-17) and 13 adults (mean age at baseline, 23.1 years; range, 18-32) were included in the analysis. For full-field static perimetry and microperimetry for both subgroups, intraclass correlation coefficient results for MS and volumetric indices were good to excellent, indicating strong test-retest reliability. Interocular symmetry in terms of baseline measurements and the annual rate of progression was observed. A greater rate of progression was observed in childhood. To our knowledge, this is the first prospective study of retinal sensitivity in a large cohort of molecularly confirmed subjects with childhood-onset STGD1 demonstrating that children with STGD1 can reliably undertake detailed functional testing. Moreover, using custom designed grids and subsequent topographic analysis, volumetric indices of retinal function provide a reliable measure of retinal sensitivity. This study highlights the use of microperimetry and full-field static perimetry, as well as volumetric indices of retinal function, in monitoring disease progression.
Find related publications in this database (Keywords): Retinal sensitivity; perimetry; visual field; retina; Stargardt disease; ABCA4; STGD1; clinical trials; endpoints