Well you see, birds are wonderful creatures. It’s thanks to them that we have a number of different plants all over the regions thanks to their consumption of berries where they then deposit the seeds in other places when they relieve themselves. They’re also wonderful at catching insect pests and some even eat small mammal. Then we have bees which, without them, we wouldn’t have any plants at all. The bees pollinate the plants, traveling from one to another, passing the pollen as they go which allows for fruit and seeds to form, which our friends, the birds then eat.
This was just some of the basics though. Hanji is a much better person to ask about this sort of thing.
Probably not. To use the gear you have to be able to properly judge the distances needed to maneuver from point to point and not being able to see the dept that distinguishes spaces would make it extremely hard, if not impossible to use the gear.