Patients receiving FC in acute NAION were more likely to experience improvement and less likely to have worsened visual acuity ( mean BCVA scores : at baseline , 0.22 ; after 3 days and 6 months of treatment , 0.33 and 0.43 , respectively ) than PFX patients ( mean BCVA scores : at baseline , 0.33 ; after 3 days and 6 months of treatment , 0.33 and 0.28 , respectively ; p < 0.002 and 0.001 ) .