Left to their own devices (i.e. without external lens adjustments), one aging eye can specialize in closeup and the other in distance. This will lead to monocular vision that is functional for both distance and closeup. This separation can be assisted by corrective lens.
Expensive progressive glasses have neurological impact, not just optical. Better to use separate distance and reading glasses which manipulate only optics, and provide the brain with a physical signal of "mode" change.
Vision therapy: https://raygottlieb.com/presbyopia
Expensive progressive glasses have neurological impact, not just optical. Better to use separate distance and reading glasses which manipulate only optics, and provide the brain with a physical signal of "mode" change.