Yes if I don't ask them to do these two things I have issues;
- Don't make my stigmatism stronger, keep it the same
- Don't change my eye center/focal point, keep it the center of the lens
Ask HN: Do your eyes bug you even though your prescription is "correct"?
251–260 of 334 posts
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#252Some people, including me, have what's commonly called ‘astigmatic halation’ — although it's often not due to simple astigmatism, but rather ‘higher order abberrations’‡ which aren't correctable by glasses. For this case, dark text on a light background is much better than light on dark. Dark on light, the light halation blends more or less evenly over the dark letter stems, resulting is slightly lower overall contra…
oh ive never heard of aberrations? it sounds like i might have it as i get weird shadows and stuff that i cannot put into exact words whenever i try to read black background white text! i will have to talk to my optician thank you
You can find some images on line that try to describe it. For me it seems a lot like this: https://www.threads.net/@mrmedina/post/CuciL0Uvam9 (But I have to remember that when I look at these, I'm stacking my own vision on top.)
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#253The solution for me to eliminate headaches when working at computer screens was getting an extra set of intermediate distance glasses specifically for computer work. The "computer screen distance" of 3 ft is in between book-reading distance of 1 feet and driving distance 20'+ feet. I also avoid progressive lenses or high-index lenses for computer work. I commented about how arrived at this solution previously: https:…
I do the same. In fact I usually just wear the intermediate distance glasses all the time around the house, and only switch to my primary glasses when I leave the house. Considering I work from home that can mean that I wear my intermediate glasses almost all day long most days.
That almost seems to reduce eyestrain as well, at least for me, as they're still good enough to see everything (I can't read text across the room but I can halfway across the room), just not without some light blur on things, and I seem to have trained my brain to stop trying to focus on things, just let it stay in the blur (at least while I have my intermediate glasses on), and that seems to relax my eyes more.
But the intermediate glasses are super clear for when I'm on the computer, which is a good chunk of the day and where I really need to see nice and sharp, as I'm manipulating things with pixel precision at times (game ui, web ui, board game graphic design).
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#254Earlier quoted context omitted.
I would still never bifocals or at least reading glasses. Once you reach around 45 everyone day. Lasix probably makes you need them sooner (but we are talking at most a couple years, not very significant) I get my glasses in ANSI rated safety glasses so wearing glasses all the time doubles as protection from all the things that could get in my eyes. This is useful if you have hobbies where that is a worry, though for…
> I would still never bifocals or at least reading glasses. Once you reach around 45 everyone day. What are the rest of the words? Or the auto'correct'-corrections? You would still wear* and after 45 everyone does* perhaps?
Sigh too late to edit anymore.
never should have been need
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#255Yes, I'm very nearsighted. I've worn progressive lenses for years but they continue to drive me crazy. I can see fine with them, but my eyes easily get fatigued and I have to take long breaks to get them to calm down. Over the summer I added a pair of progressive occupational lenses (not reading glasses). They are focused arms length in front of me. This has been a complete game changer. I can now see my monitor cris…
Same, I have occupational lenses that are also focused to arms length, and it has made a huge difference for me as well when using it for reading things on my computer screens. It makes reading small text easier and feels crisp. Using it outside of its intended distance will cause eye strain since your eyes won't be able to focus properly. My provider calls them "computer glasses". It does not have blue light filteri…
> Using it outside of its intended distance will cause eye strain since your eyes won't be able to focus properly.
I don't find that at all, personally. I wear my computer glasses almost all the time in the house and just let myself not try to focus on things. If anything it seems to be better than my normal distance lenses for eye strain, for me, because my eyes do try to focus with my normal lenses since it's supposed to be perfectly clear, where I know there's a good reason they're not in focus when I'm not wearing them.
My distance glasses have progressive lenses, which may be part of that, as there's different strength depending on where you're looking at in the glasses. I've been tempted to remove progressive lenses from my next pair, as I tend to take them off to read anyway, and then I'd get a flat prescription like I have on my computer lenses.
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#256When I went to check my sight after repeatedly getting blurry vision/eye strain after working (mostly reading on laptop) they said they couldn't find any issue with my sight. One of the eye were a bit worse than the other, with trouble with distant object, but not to the level of needing glasses.
But I insisted and made (very weak) glasses with blue-light filter included, and these days I use it when I need to read stuff on the screen (I get zero strain or blurry vision when I play games, in same setup, oddly enough). It helps a lot but they're not perfect, sometimes I still get blurry vision after a while.
Later on I experimented with lightning condition, and realized that my eyestrain often correlated with bad lightning (cafe, when remote work) and stress/bad sleep. Better lightning also help, but not perfectly. It's also odd because since childhood I've been sensitive to light. Walking outdoors in the summer, I can't keep my eyes fully open.
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#257Earlier quoted context omitted.
Same, I have occupational lenses that are also focused to arms length, and it has made a huge difference for me as well when using it for reading things on my computer screens. It makes reading small text easier and feels crisp. Using it outside of its intended distance will cause eye strain since your eyes won't be able to focus properly. My provider calls them "computer glasses". It does not have blue light filteri…
>Using it outside of its intended distance will cause eye strain since your eyes won't be able to focus properly. Mine are more useful that I anticipated when I'm not using them for work. I would advise against anybody driving with the wrong pair of glasses, but I can see significantly better with my occupational lenses than without. I would not trust them at night, but during the day I can see well enough I am not c…
Same. I've driven short distances sometimes to pick up lunch or something 5-10 minutes away because I forgot to switch my glasses. It wasn't ideal but perfectly doable.
I've only done it a handful of times, though. And also I wouldn't do so at night.
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#258About 15 years ago or so I was part of a study for Zeiss wavefront lenses. They used some sort of interferometer to map my vision and generated a set of aspherical lenses based on that. They were absolutely the best pair of glasses I ever owned hands down. No chromatic aberration. Absolutely crystal clear vision. Granted, this was before presbyopia set in. As far as I could tell, they never really rolled out the syst…
The problem as I see it is that the diopter system only has a limited number of different profiles. So if you fall in between a diopter (need more than a 2.5 but less than a 2.75, say) the lenses won't be perfect and you'll have eyestrain.
Presbyopia hit me about 10 years ago. Some people I know use all-day contacts for distance vision then wear glasses on top for computer use and reading. I'm considering it.
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#259I don't really know if anybody will read this, but if somebody does and knows what it is, please give me some advice. I see double text, not anything else, only sources of light, like anything on a computer screen. It is like what I am seeing from both of my eyes does not line up correctly. On a completely white background, I see spotches of grey. I have visited two or three doctors and each gave a different prescrip…
early stage keratokonus, if this is true you need to get the corneal crosslinking procedure done asap while you are young as the condition progresses rapidly in your 20s. The double (triple, N-ary) vision can be corrected by special contact lenses. You may need a specialist ophthalmologist for this diagnosis. https://en.m.wikipedia.org/wiki/Keratoconus see “signs and Symptoms” image, and note that is advanced, as a 1…
Shit, It did match, looking at the text through the edge of a card does make it clear for me. Although the blurriness is not as extreme as given in the wiki page.
Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?
#260The solution for me to eliminate headaches when working at computer screens was getting an extra set of intermediate distance glasses specifically for computer work. The "computer screen distance" of 3 ft is in between book-reading distance of 1 feet and driving distance 20'+ feet. I also avoid progressive lenses or high-index lenses for computer work. I commented about how arrived at this solution previously: https:…
How do you do with driving and seeing smaller things on your automobile dashboard? I'm up around 7 diopters nearsighted so maybe it depends on the range of needed focusing.