ἐν οἰκίᾳ τυφλῶν καὶ ὁ νυκτάλωψ ὀξυδερκής → even the day-blind is sharp-eyed in a blind house | among the blind, the one-eyed man is king
-γγος, ἡdestello Hdn.Gr.2.743, cf. ἀμάρυγγες· ἀκτῖνες, λαμπηδόνες, ὄψεις Hsch.