Everyone knows that in Samson Agonistes Milton altered many details in the judges narrative of Samson, changing Dalila from a concubine to a wife, for instance, and inventing the characters of Harapha and the Public Officer. Yet one alteration that has gone unnoticed is the fact that Samson's eyeballs remain intact and his face looks normal and uninjured even after his being violently blinded by the Philistines.
Burbery, Timothy J. "The Representation Of Samson's Eyes In Samson Agonistes." English Language Notes 35.2 (1997): 27-32.