His feast is kept on 13 November.
Eugenius left two books in prose and verse, published (Paris, 1619) by Father Sirmond, S.J., containing his poems on religious and secular subjects, his recension of the poem of Dracontius on "The Six days of Creation" (Hexaemeron), to which he added a "Seventh Day", and a letter to King Chindaswith explaining the plan of the entire work; he also edited the metrical "Satisfactio" of Dracontius, an account of the writer's misfortunes.
Of this work Bardenhewer says (Patrology, tr. St. Louis, 1908, p. 619) that it "underwent a substantial revision at the hands of Eugenius II, Bishop of Toledo, in keeping with the wish of the Visigothic King Chindaswith (642-49); not only were the poetical form and the theology of the poem affected by this treatment,but probably also its political sentiments. It is this revision that was usually printed as Dracontii Elegia (Migne, P.L., LXXVIII, 383-88), until the edition of Arévalo (Rome, 1791, 362-402, and 901-32) made known the original text".
He also wrote a treatise on the Trinity probably against the Arian Visigoths. Ferrera mentions a letter of Eugenius to the king and one to Protasius, the Metropolitan of Tarragona, promising if possible to write a mass of St. Hippolytus and some festal sermons, but disclaiming the ability to equal his former productions.