can't see beyond the end of one's nose

can't see beyond your nose AND can't see past the end of your nose (if you can't see beyond the end of your nose, you think so much about yourself and what affects you that you do not see what is really important ) — не видеть дальше своего носа

Example: These people are so busy making money, they can't see beyond the end of their nose.

cf.
[за деревьями леса не видеть]