Longitudinal analysis of contrast acuity in Friedreich ataxia

Ali G. Hamedani, Lauren A. Hauser, Susan Perlman, Katherine Mathews, George R. Wilmot, Theresa Zesiewicz, S.H. Subramony, Tetsuo Ashizawa, Martin B. Delatycki, Alicia Brocht, David R. Lynch; Neurol Genet. 2018 Jul 23;4(4):e250. doi: 10.1212/NXG.0000000000000250. eCollection 2018 Aug.

Low-contrast visual acuity decreases linearly over time in Friedreich ataxia, and the rate of decrease is greater at higher GAA repeat lengths. Contrast sensitivity has the potential to serve as a biomarker and surrogate outcome in future studies of Friedreich ataxia.

 Longitudinal analysis of contrast acuity in Friedreich ataxia