It may be issues with proprioception. That is, the brain's understanding of where you exist in time and space. Neuropathy can greatly cause issues with this.

When the brain has a hard time determining where you are, balance issues can happen. Trembling through the body/legs, etc. Especially in dark places and what the brain determines is an uneasy path.

You can tend to become eye dominant. Brain is looking to get as much information of where you are at a given time that when sight is comprised, it can be an issue.

How are you with stairs? Curbs? Dark places?