That Justice is a blind goddess
Is a thing to which we black are wise:
Her bandage hides two festering sores
That once perhaps were eyes
The blindfold that covers the eyes of  Themis  (goddess of justice) traditionally symbolizes her impartiality. Here, however, Hughes reinterprets the blindfold as a “bandage” hiding a terrible deformity, or perhaps the aftermath of a violent injury. 
 Hughes’s version changes the symbolism to suggest that the façade of impartiality actually hides the fact that Themis’s perception (or ability to judge in the first place) is gravely compromised, especially in matters of racial equality. 
 Notice how Hughes only includes three  metric feet  in the final line of the poem to make the poem’s ending forceful and punctuated. By coupling this with the seemingly inappropriate rhyme of “wise” with absent “eyes,” Hughes creates a harrowing ending that captures the contrast between the perceived order (of rhyme and justice) and the actual state of things (disorder, injustice). 

Justice