AC Diffuse dries eyes

Just takes long drive today on highway, normally I just driving with AUTO AC, and it always open central Diffuse, I noticed that the airflow blows into my eyes and dries them, I try to turn off the diffuser manually, but then it gets hot for the back, is it possible to adjust the angle of the center diffuser? I can't believe the engineers didn't provide for air flow adjustment like this on other machines. Also, I don't have seat ventilation and here in Dubai even in winter my back gets damp, I got a new seat with ventilation from the dealer, but he said it's 25k for one, are there any better solutions?