It is a protector.
It sits on a bridge.
One individual can see directly through it , while others wonder what it hides.
What am I talking about ?
They protect the eyes
It sits on space above nose eyes - called bridge
Through it we can see
I act of veil and of shadow; sometimes I shall let you see through me, sometimes I shall not. I hide from day but I still exist. What am I?
I only have one eye and a long tail that I let fly. Every time I go through a gap, I leave a bit of my tail in the trap. What am I?