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Ask HN: Do your eyes bug you even though your prescription is "correct"?

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Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#51

Post by amluto »

winrid wrote: post #44

I had this issue until I got a 2nd prescription by a different provider and new lenses. Sometimes lense material etc also matters. Bigger PITA than I thought getting glasses was going to be. Nearsighted, left eye worse.

Lens material absolutely matters. Glasses suffer from chromatic aberration, and this causes visible rainbows away from the center of the lens. A material with a higher Abbe number will perform better.

For common lens materials, polycarbonate has a low Abbe number, and Trivex is a widely available alternative with a higher Abbe number. You can find tables online for common lens materials.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#52

Post by walterbell »

foobarian wrote: post #37

I'm nearsighted with a slight bit of astigmatism. (-6 or so). I got progressive lenses the last time around at the optician. I hated the whole process; it was desperate and high-pressure sales. I hate the progressive lenses because using them requires tilting your head at awkward angles. I hate that the near-sighted prescriptions are regulated as much as they are. I ended up self-serving at eyebuydirect.com. For the…

Well done. EBD lenses are made by the same company that sells to local opticians.

Progressive lenses also influence visual perception after years of use, unlike old-school bifocals with a clear shift in focus.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#53

Post by kccqzy »

foobarian wrote: post #37

I'm nearsighted with a slight bit of astigmatism. (-6 or so). I got progressive lenses the last time around at the optician. I hated the whole process; it was desperate and high-pressure sales. I hate the progressive lenses because using them requires tilting your head at awkward angles. I hate that the near-sighted prescriptions are regulated as much as they are. I ended up self-serving at eyebuydirect.com. For the…

I also recommend eyebuydirect.com. Although it's part of the eyeglass monopoly (Essilor Luxottica), they have frames that are good looking and affordable, and all the single vision lenses are cheap except for the 1.74 high index ones.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#54

Post by r_klancer »

_JamesA_ wrote: post #10
juped wrote: post #6

I avoided glasses for years because no matter what, wearing them would give me horrible headaches. Then one day I went to a higher end optician, spent $1000, and have been comfortably using glasses since. So maybe more selling, less research?

What is a higher end optician and how do you find one?

Can't speak for GP, but in my case it was an academic optometry center. Life changing. See my longer toplevel reply.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#55

Post by bmurphy1976 »

theogravity wrote: post #26
bmurphy1976 wrote: post #8

Yes, 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.

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 concerned about my driving. I don't intend to drive with them, but there has been the occasion here or there when I had to run somewhere quickly and forgot to swap my glasses.

It also helps that mine are progressives, so the very very top part of the lens is my "regular" prescription. I can use that to focus on something at a distance if necessary.

>They would be a separate prescription / lens type (as in not progressive I think) compared to daily use glasses. I do have to swap to my daily use when not using my computer glasses outside of sitting and looking at a monitor.

Like I mentioned above, mine are both occupational and progressive. I'd like to try non-progressive occupational lenses to see if I like them better, but I'm not convinced it would be worth the money.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#56

Post by dinfinity »

bmurphy1976 wrote: post #8

Yes, 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…

Unsure if this will work for your case, but I am _very_ happy with my implanted contact lenses. They sit behind my iris and optically function as normal contact lenses. No hassle, just a straight up body upgrade.

See https://en.wikipedia.org/wiki/Intraocular_lens

I was very surprised that this is not a more common thing to hear about amongst people with bad eyesight. Laser correction sucks in comparison, with more risks of complications, generally worse vision outcomes, longer recovery, etc. The lens implantation process is even undoable and as safe as cataract surgery which has been done since the 1970s.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#57

Post by walterbell »

kccqzy wrote: post #53
foobarian wrote: post #37

I'm nearsighted with a slight bit of astigmatism. (-6 or so). I got progressive lenses the last time around at the optician. I hated the whole process; it was desperate and high-pressure sales. I hate the progressive lenses because using them requires tilting your head at awkward angles. I hate that the near-sighted prescriptions are regulated as much as they are. I ended up self-serving at eyebuydirect.com. For the…

I also recommend eyebuydirect.com. Although it's part of the eyeglass monopoly (Essilor Luxottica), they have frames that are good looking and affordable, and all the single vision lenses are cheap except for the 1.74 high index ones.

> they have frames that are good looking and affordable

Some of their frames are clones of expensive, popular frames from boutique designers. Perhaps that's why they are retired after a while.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#58

Post by bmurphy1976 »

dinfinity wrote: post #56
bmurphy1976 wrote: post #8

Yes, 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…

Unsure if this will work for your case, but I am _very_ happy with my implanted contact lenses. They sit behind my iris and optically function as normal contact lenses. No hassle, just a straight up body upgrade. See https://en.wikipedia.org/wiki/Intraocular_lens I was very surprised that this is not a more common thing to hear about amongst people with bad eyesight. Laser correction sucks in comparison, with more ri…

Honestly, I'm absolutely terrified of doing anything that might damage my eyesight. I know the common procedures (i.e. Lasik) have come a long way in the last two decades and are very low risk, but they are not zero risk. I won't even wear contact lenses, I long ago fully committed to glasses. That type of procedure doesn't fit my risk tolerance.

Re: Ask HN: Do your eyes bug you even though your prescription is "correct"?

#59

Post by walterbell »

bmurphy1976 wrote: post #8

Yes, 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…

> now have to juggle two pairs of glasses instead of one

This can be mitigated with custom magnetic clip lenses, e.g. Chemistrie. Tiny magnets are implanted into your current frame. Clip lens changes the focal length of your existing glasses by a fixed offset. Computer or reading clip can be changed in seconds. They also have polarized clips for instant sunglasses on your existing frame, which are better than Transitions/photochromic because they work while driving and are instant on/off.

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