Good advice, Jack.
I'm very lucky. In my 59th year and still 20/20 (or nearly so) and only use a 1.25 set of reading glasses. And don't need those on some days.
But I ALWAYS wear shooting glasses, so I still experience the eye relief problem with binos and spotting scopes. Besides the ocular distance that Jack mentioned, you'll also get a wider field of view if the rear lens (the ocular) is larger in diameter.
The common misconception is that a large front (objective) lens gives a wider field of view, but the diameter of the front lens has nothing to do with field of view. The rear one does.
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