This makes me wonder: is there a lens that you could use instead of glasses that will make your computer screen appear as if it is further away? Could it help people regain their far-sight?
Sure, get convex lens ("reading glasses") of about +1 to +1.5D and make the IPD as low as possible to induce a prism https://en.wikipedia.org/wiki/Prism_correction#Prentice's_ru... (in layman terms, this will make the "rays" coming from your two eyes "cross" and intersect at a certain distance)
You can also use prismatic lenses as the induced prism probably won't be sufficient (but better than nothing), but my local shop does not make them, so I have no experience with this.
I am shortsighted and I have special glasses for computer/close work (reading, soldering), which are 1.5D weaker and the IPD is 10mm larger (as these are concave lenses, it's the opposite IPD manipulation than with convex). The induced prism for my glasses is about 2Δ.
I don't understand why this is not more popular, both among shortsighted (to have weaker glasses to use indoors) and healthy (to have "reading glasses"). Including the prism. Beware, that some doctors say that by using such "perfect" correction for e.g. your computer screen, your eyes will "get lazy". I don't think this is true, but YMMV.
Protip: there are online services that will just make you glasses, no questions asked, usually for $20 to $40 for basic glasses. Here in .cz we have optiscont, globally, there is zennioptical; you can also search aliexpress. I don't have any apparatus to measure the quality of the resulting lenses, they however seem "good enough".
You can also use prismatic lenses as the induced prism probably won't be sufficient (but better than nothing), but my local shop does not make them, so I have no experience with this.
I am shortsighted and I have special glasses for computer/close work (reading, soldering), which are 1.5D weaker and the IPD is 10mm larger (as these are concave lenses, it's the opposite IPD manipulation than with convex). The induced prism for my glasses is about 2Δ.
I don't understand why this is not more popular, both among shortsighted (to have weaker glasses to use indoors) and healthy (to have "reading glasses"). Including the prism. Beware, that some doctors say that by using such "perfect" correction for e.g. your computer screen, your eyes will "get lazy". I don't think this is true, but YMMV.
Protip: there are online services that will just make you glasses, no questions asked, usually for $20 to $40 for basic glasses. Here in .cz we have optiscont, globally, there is zennioptical; you can also search aliexpress. I don't have any apparatus to measure the quality of the resulting lenses, they however seem "good enough".