Glad to hear reading glasses or a + diopter lens can solve much of the blurriness problem with the G2.
About a month ago I reported a similar finding while playing around with kiddie smartphone VR goggles. I am 75-years-old and have age-related presbyopia (inability to focus close up with hardening of aged eye lenses) and replied to a poster who claimed because of the optics in HMD VR goggles presbyopia was not a problem.
One thing that I have read is that inserting an additional + diopter lens between your eye and the lens that comes with the goggles reduces the overall field of view. Do you find that with the HP Reverb G2? If so, any guesstimate of how much?
Since your presbyopia correction for very close-up is about the same as mine, have you tried a +2 diopter? I haven’t tried a +1 lens yet in my smartphone goggle test but for +2, based on the outstanding clarity of the screen door effect that I got playing with an iPhone 6S in the kiddie goggles (!), I thought the +2 would work well.
BTW, for + diopters, the diopter value is roughly the reciprocal of the distance in meters that a lens of that power allows you to focus on an object. A diopter of +1 allows you to focus on an object 1 meter away. A diopter of +2.5 allows you to focus on an object 0.4 m (~16 in) away. I would think to see the image in a VR headset, you need to clearly see the pixels on a screen several inches away from your eyes, so the ideal diopter would be closer to +2 than to +1. If one were not focusing fairly close up on the HMD’s, where would the screen door effect in some VR headsets come from?
Thanks for any additional comments on what the added diopter correction does to the available field of view. Since the diopter correction works for an HP Reverb G2, looks like a G2 may be in my future (didn’t want to lay out myself $600 just to find out if reading glasses inside the G2 would deal with my serious presbyopia!). And if the reading glasses are good for me, I will probably pay additional bucks for prescription lens inserts to deal with my mild astigmatism that the reading glasses will not correct. My normal glasses do not help as the bifocal correction there is graduated across the field of view, greatest towards the bottom (looking down while reading), least straight ahead.