3 ms·

You and I and a few others around the web all have had this idea of making screens look farther away, by changing focus with positive lenses and and binocular c

by mgdlbp 4y ago

You and I and a few others around the web all have had this idea of making screens look farther away, by changing focus with positive lenses and and binocular convergence using prisms. I actually wrote this comment with the math for determining the required prescription (since you can simply order them online) just a month ago.[1] I then found that the concept isn't uncommon when I discovered an older comment with the same idea, which I've misplaced, but a search turns up another thread revealing that this already exists as a product marketed for gaming.[2] [1] https://news.ycombinator.com/item?id=31349629 https://news.ycombinator.com/item?id=31349629 [2] https://news.ycombinator.com/item?id=21742229 https://news.ycombinator.com/item?id=21742229

sbf501 4y ago
Around 1995 I wrote a DirectDraw text-editor that would render two images and force you to defocus your eyes like the op-art-3d puzzles: making the viewer have to focus far away. It worked for images but not for reading small text.
JackMorgan 4y ago
You might enjoy checking out https://endmyopia.org/ https://endmyopia.org/ There's calculators on his site also for astigmatism. I think also a list of optometrists who will understand if you want weaker lenses.
- mgdlbp 4y ago
  Good info on refractive error there, though I don't see much on prism lenses used for this purpose. While searching, I did discover this book, the Myopia Manual, which they're hosting a copy of. It looks quite thorough and does have a chapter on using prisms to match vergence with accommodation in plus lenses. The book also has its own site http://www.myopia-manual.de/ http://www.myopia-manual.de/ I also found an older myopia submission where a comment links several related sites.[1] frauenfeldclinic.com now redirects to endmyopia.org; archive.org confirms that the old domain was the same site, but oddly the new domain has an exclusion applied. As one reply noted, myopia.org really is an excellent display of the Time Cube design language.[2] [1] https://news.ycombinator.com/item?id=9230093 https://news.ycombinator.com/item?id=9230093 [2] http://www.myopia.org/conspirators.htm http://www.myopia.org/conspirators.htm
  - Aulig 4y ago
    There's people in the endmyopia forum using base in prism with their plus lenses - look for espantoso and nycmao :) Personally, I just use plus lenses without prism.

by mgdlbp 4y ago

sbf501 4y ago

Around 1995 I wrote a DirectDraw text-editor that would render two images and force you to defocus your eyes like the op-art-3d puzzles: making the viewer have to focus far away. It worked for images but not for reading small text.

JackMorgan 4y ago

You might enjoy checking out https://endmyopia.org/ https://endmyopia.org/ There's calculators on his site also for astigmatism. I think also a list of optometrists who will understand if you want weaker lenses.

mgdlbp 4y ago
Good info on refractive error there, though I don't see much on prism lenses used for this purpose. While searching, I did discover this book, the Myopia Manual, which they're hosting a copy of. It looks quite thorough and does have a chapter on using prisms to match vergence with accommodation in plus lenses. The book also has its own site http://www.myopia-manual.de/ http://www.myopia-manual.de/ I also found an older myopia submission where a comment links several related sites.[1] frauenfeldclinic.com now redirects to endmyopia.org; archive.org confirms that the old domain was the same site, but oddly the new domain has an exclusion applied. As one reply noted, myopia.org really is an excellent display of the Time Cube design language.[2] [1] https://news.ycombinator.com/item?id=9230093 https://news.ycombinator.com/item?id=9230093 [2] http://www.myopia.org/conspirators.htm http://www.myopia.org/conspirators.htm
- Aulig 4y ago
  There's people in the endmyopia forum using base in prism with their plus lenses - look for espantoso and nycmao :) Personally, I just use plus lenses without prism.