τὴν ἐρημίαν τῶν κωλυσόντων ὁρῶν → seeing that there would be none to hinder him
nyctălōpĭa: ae, f., = νυκταλωπία,I the disease of one who cannot see in the twilight, nyctalopy, Isid. Orig. 4, 8, 8 (al. nyctalmos).
nyctălōpia (-lōpa), æ, f. (νυκταλωπία), nyctalopie : M. Emp. 8 ; Isid. Orig. 4, 8.