glasses are for eyes not ears .

Do deaf people wear headphones like

This:

Or this:

Left obviously. Even if their eyesight isn’t their best sense it’s still eyesight.

we've been knew

Since the image shows a flying fox/fruit bat, which use their eyes for orientation, any corrections would be applied in front of the eyes.

Yes, and I'm wearing hearing aids instead of glasses.

I have contact lenses in my ears too but that's just because they make me look more distinguished and smart.