Adequate n-3 PUFA diet improves visual deficit. (A,B) Average traces of VEP (A) with quantitative analysis of N1 amplitude (B). (C–E) Average traces of ERG (C) with quantitative analysis of a (D) and b-wave amplitude (E). VEP and ERG were measured for the high (Ade) or low (Def) n-3 PUFA diet group at 2 months after TBI induced by rCHIMERA (rCHI). Inset in (C) shows the magnified view of a-wave (n = 9; ***p < 0.001, ****p < 0.0001 vs. Ade-Sham). ERG, electroretinogram; PUFA, polyunsaturated fatty acid; rCHIMERA, repeated CHIMERA; VEP, visual evoked potential.