Earlier quoted context omitted.
1280x720 AR eyeset can be good to excellent for reading text (I do it often). But, the comfort is around a dozen lines (or less) per screen...
I suspect you are used to those 1280x720 being applied to a far, far smaller field of view. 110 degrees is remarkably wide.
Absolutely. The device is an Epson Moverio. I see through a quick search that the FoV should be 23°. And mind you, in some conditions the characters at the borders can lose focus or gain artefacts.
The display could sure gain from extra lines (a resolution of 1280x960, instead of 1280x720, could be optimal to my estimation) without causing visual issues, but potential visual issues with the left and right extremes are already evident.