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340 points jbornhorst | 1 comments | | HN request time: 0s | source

I’m digging into an idea around eyeglasses, screen-time, and vision discomfort. If you wear prescription glasses but still get headaches, eye strain, or blurry vision after long screen days, I’d love to chat briefly (20–30 min).

Pure research, zero selling.

Interested? Drop a comment below or email me directly at jbornhorst [at] gmail.com. I’ll coordinate a convenient time to talk.

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01100011 ◴[] No.43298490[source]
About 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 system for anything but progressive lenses. It's a shame.

Anyway, I've been fighting progressives for about 5 years now. I have 2 pairs that I got a couple years apart but could never bring myself to wear them. Like some others have said, I much prefer having a pair of medium distance computer lenses. They end up being the glasses I wear when I'm at home even when I'm not in front of the computer. I now have to lift them up to see up close, but that's a reasonable compromise to wearing progressives.

I really want to find an optometrist who uses some alternative to the old phoropter system. My prescription is currently a bit "off" and I swear it's because the phoropter system is fundamentally flawed. My eyes adjust and adapt during the test, causing me to misreport the optimal setting. There just isn't enough time in a typical appointment to detect eyestrain or other issues with a particular prescription.

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chiph ◴[] No.43300547[source]
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.

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1. bartman ◴[] No.43301067[source]
Zeiss i.Scription, linked in a sibling thread, solves the coarse diopter scale as well.