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Earth features clearly visible from space and agricultural areas.
Russian cosmonauts report improved vision after an extended time in space. A phenomenon called "second sight" or "space sight" that is being investigated.
Although some cosmonauts have indicated degraded depth perception during docking operations; US astronauts have not commented on this to a
This doesn't appear to be a problem in
eye-brain performance as much as the result of the viewing of objects in the empty visual setting of space.