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IXI's autofocusing lenses are almost ready to replace multifocal glasses

engadget.com

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Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#51

Post by NetMageSCW »

isityettime wrote: post #13
dmayle wrote: post #10

Earlier quoted context omitted.

You can swap out your default lenses with multifocal lenses... I use multifocal contact lenses, and my wife and my mother both had the surgery. My wife got the panoptix (no need for glasses at all) and my mother got vivity (just need reading glasses). At night, there are halos with the panoptix lenses (same with the multifocal contact lenses), the severity is not always the same per-person, and it bothers some people…

I'm unfortunately not a candidate for multifocal intraocular lenses due to other problems with my eyes, otherwise I would have gone with them for the first surgery. Multifocal contacts are probably not a good long-term fit for those same reasons, and there's the same problem with progressive lenses in glasses. Old-school bifocals are okay, but limited in the usual way.

Perhaps you could try monovision in glasses instead of multifocal?

I have monovision contacts and they work pretty well for me, though mid-tier (e.g. desk computer) work requires special glasses.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#52

Post by NetMageSCW »

jaggederest wrote: post #35
isityettime wrote: post #9

I'm under 40, recently had cataract surgery to address mild cararacts, and deeply regret that choice. I strongly feel I lost more than I gained, and now need to carry multiple pairs of glasses every time I go out to engage many common activities. Unfortunately I don't have presbyopia at all (my surgery still left me myopic) and my inability to change focus distance is drastically more severe than what happens natural…

Have you tried using contact lenses to make one eye long focus and one eye short focus ("monovision" in intraopticlens terms)? Then you'd only need at most one middle-distance pair of glasses on hand.

Exactly what I do, and even though my short focus is set extra short, I only need the middle distance glasses for desk computer work.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#53

Post by jaggederest »

Mezzie wrote: post #50
RHSeeger wrote: post #49

Earlier quoted context omitted.

I keep my new computer glasses at the computer, and the old ones downstairs for "other" uses. Then I keep my new driving glasses in the car, and the old ones downstairs for "other" uses (tv, etc). Basically, I keep the new ones where it matters and accept that my vision will be mediocre in other cases. And also, I'll see 2 of everything because I have double-vision (corrected with the glasses - but "older" ones don't…

I have to choose each year between paying for (main) glasses or contacts, so I usually opt for contacts and that means my glasses are a few years old. When I wear them at night, I definitely see double. Hate it. I'm a -20, so small differences really magnify.

Wow, that's a wild prescription, presumably ICL would be a huge quality of life difference for you! You could get within a diopter or two. I've been contemplating it at only -6, my commiseration on the multiple focal lengths.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#54

Post by WalterBright »

cperciva wrote: post #36
Nifty3929 wrote: post #32

Earlier quoted context omitted.

These glasses address farsightedness, which doesn't apply while driving. Worst case you just take them off.

Plenty of us are simultaneously far and near sighted. I can't drive without glasses, but until I got progressive lenses I couldn't use my phone with my glasses on.

If you cannot drive without glasses, the sensible thing is to keep a backup pair in the car. After all, glasses can fall off and get lost under the seat, get stepped on, etc.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#55

Post by devilbunny »

Mezzie wrote: post #50
RHSeeger wrote: post #49

Earlier quoted context omitted.

I keep my new computer glasses at the computer, and the old ones downstairs for "other" uses. Then I keep my new driving glasses in the car, and the old ones downstairs for "other" uses (tv, etc). Basically, I keep the new ones where it matters and accept that my vision will be mediocre in other cases. And also, I'll see 2 of everything because I have double-vision (corrected with the glasses - but "older" ones don't…

I have to choose each year between paying for (main) glasses or contacts, so I usually opt for contacts and that means my glasses are a few years old. When I wear them at night, I definitely see double. Hate it. I'm a -20, so small differences really magnify.

Holy fucking shit. I am -11 contacts, -13 glasses, and you are the first person I have ever heard of that is more than one diopter stronger than me.

Ophthalmologists will bring their newer assistants in to look at my eyes to see what a severe myope looks like. I got contacts at age eight, so they also use me to show off what a scrupulous contact user’s eyes look like after >40 years. I’m a physician myself, so I’m happy to oblige - some things you can’t understand until you see them.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#56

Post by WalterBright »

1123581321 wrote: post #40
Nifty3929 wrote: post #32

Earlier quoted context omitted.

These glasses address farsightedness, which doesn't apply while driving. Worst case you just take them off.

If they are replacing bifocals, the wearer needs both a near- and far-sighted prescription. Far-sighted only would never need these. Either failure mode would be dangerous while driving because you need to be able to read your dash.

It's not a crisis if you cannot read your dash. How often do you look at the oil pressure gauge, for example? As for speed, just move with the traffic.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#57

Post by WalterBright »

snackbroken wrote: post #26
xp84 wrote: post #22

Looks super cool! > It still needs to obtain the necessary medical certifications in order to sell its glasses and get all the production pieces in place Oh, ok. I hope they have enough funding to last till the FDA clears them, in 2030 :/ The same organization which allows any snake oil to be marketed as long as they say it’s a “supplement” will hold a pair of glasses up for years, as though there could be a hidden d…

There is potential danger with a lens that can suddenly change to a second prescription. For example: imagine you're driving and your whole field of vision suddenly starts flickering in and out of focus. That would be incredibly distracting and pretty dangerous. Even if they just started focusing on 1 foot away it'd be quite bad.

The FDA needs to make the glasses as expensive as possible.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#58

Post by WalterBright »

isityettime wrote: post #9

I'm under 40, recently had cataract surgery to address mild cararacts, and deeply regret that choice. I strongly feel I lost more than I gained, and now need to carry multiple pairs of glasses every time I go out to engage many common activities. Unfortunately I don't have presbyopia at all (my surgery still left me myopic) and my inability to change focus distance is drastically more severe than what happens natural…

The local drug store went bust recently. They had a clearance sale, and I bought a collection of reading glasses of different strengths for a few dollars each.

I find them very handy, as my progressive lenses are rather limited for closeup work.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#59

Post by Noumenon72 »

WalterBright wrote: post #54
cperciva wrote: post #36

Earlier quoted context omitted.

Plenty of us are simultaneously far and near sighted. I can't drive without glasses, but until I got progressive lenses I couldn't use my phone with my glasses on.

If you cannot drive without glasses, the sensible thing is to keep a backup pair in the car. After all, glasses can fall off and get lost under the seat, get stepped on, etc.

That's a smart idea, similar to how I keep a little cash in the car just in case. For example, I could get something in my eyes and have to remove my contacts, and an old pair of glasses would let me get home.

Re: IXI's autofocusing lenses are almost ready to replace multifocal glasses

#60

Post by heikkilevanto »

SomeHacker44 wrote: post #27
heikkilevanto wrote: post #12

I am not so sure about the eye tracking and autofocus stuff, but would love a simple focus knob on the frames to adjust instead of changing to a different pair of glasses. I suspect the tracking and focusing electronics must be somewhat clumsy and a battery life of a single day sounds suboptimal for me.

This exists. There was a frame with a slider on the nose bridge which refocuses circular lenses. I read about it a long (decade+?) time ago.

Sounds interesting. But I suspect my astigmatism would kind of exclude just turning the lenses around
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