aspect blindness, n.All

Aspect-blindness (n.) would ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠be seeing no change of aspect, perhaps treating pictures as we treat blueprints — though never being fooled by trompe l'oeil is hardly blindness.