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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

#91

Post by bluGill »

WalterBright wrote: post #77
bluGill wrote: post #70

Earlier quoted context omitted.

I had a car with a broken dash. The only thing I missed for the month until I fixed it was the fuel gauge. I probably didn't estimate my speed very accurately but I was close enough to not get a ticket.

Yes, with my old cars I've had broken dashes, too. I discovered I maintained speed by the engine pitch - because when I drove a silent car, I couldn't seem to maintain a consistent speed! As for the gas gauge, the trick is to reset the local odometer at every fillup, and you'll have an indication of the remaining fuel. Some older cars don't even have a fuel gauge, they just have a lamp that glows when it gets low.

I my case I tore the dash apart because the speedometer wasn't working, and the odometer is connected to that. Only after tearing the dash apart could I see the cable to the transmission wasn't turning. Until I found the real problem there wasn't a hurry as I removed the cable several times before I found what was really broke.

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

#92

Post by gchamonlive »

consp wrote: post #81
gchamonlive wrote: post #80

Earlier quoted context omitted.

Changing glasses while driving on a high speed lane is dangerous regardless of where you put your spare glasses

Considering what people do whole driving, I doubt this will add any measurable risk.

On the contrary, if you are a perfect driver and only reach for you glasses, that adds a small risk. But this is a complex system, driving and multitasking, so added complexity surely compounds, maybe even exponentially. If you are texting, then talking to your kids, then your brother next to you starts blasting loud music on the radio, adding another task like changing glasses increases the risk of an accident a lot, because less and less you are concentrated on the traffict.

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

#93

Post by dimes »

NDlurker wrote: post #90
kelnos wrote: post #85

Earlier quoted context omitted.

Then perhaps tell us how it works, rather than just being negative toward other people's comments.

That user could have googled it instead of making a false claim. https://www.fda.gov/food/dietary-supplements-guidance-docume... https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B... https://ods.od.nih.gov/About/DSHEA_Wording.aspx

Linking to a huge list of supplement guidelines, most of which cover labeling of nutrient content is not helpful. I did try to dig in, however, and found this:

> A qualified health claim is supported by less scientific evidence than an authorized health claim. FDA requires that qualified claims be accompanied by a disclaimer that explains the level of the scientific evidence supporting the relationship.

> Unlike authorized health claims, FDA does not issue regulations for qualified health claims.

That does seem to indicate supplement manufacturers have broad latitude to make claims provided they are disclosed as such.

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

#94

Post by Mezzie »

devilbunny wrote: post #68
Mezzie wrote: post #63

Earlier quoted context omitted.

Yeah, the only people I've heard of with worse vision than me are those with some sort of associated eye condition (e.g. kerataconus). For the most part, it's...fine. Insurance has no idea what to do with me and that's frustrating, though. Somehow, I have eyes this bad without any associated pathology, and companies don't understand that the needs that such severe myopia presents on its own. I wear custom made RGPs;…

They learn about me . You are a class on your own.

I did have to do a lot of advocating/educating back when I was younger and too poor for insurance. It was good practice for when I was diagnosed with MS, though.

Now I usually look for practices that work with keratoconus patients. They usually have practice with strange prescriptions and unusual contact fittings.

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

#95

Post by therealpygon »

kelnos wrote: post #84
snackbroken wrote: post #26

Earlier quoted context omitted.

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.

I don't think the FDA should be regulating based on whether or not it's safe to drive while using something. There are plenty of FDA-approved drugs that should not be taken while operating a motor vehicle.

Are those drugs required for driving by the people who use them? I would expect if so, they would be tested more thoroughly before putting people on the road with a new drug, much like I’d rather not have someone driving toward me at a combined opposing speed of 100-120mph, two feet apart, while relying on “we didn’t think it will be a problem but we didn’t bother to test”.

That said, there is certainly room for an improvement in funding so that the FDA could go through processes more efficiently, but “efficiency” is rarely ever achieved by cost cutting because it confuses cause with effect.

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

#96

Post by WalterBright »

bluGill wrote: post #91
WalterBright wrote: post #77

Earlier quoted context omitted.

Yes, with my old cars I've had broken dashes, too. I discovered I maintained speed by the engine pitch - because when I drove a silent car, I couldn't seem to maintain a consistent speed! As for the gas gauge, the trick is to reset the local odometer at every fillup, and you'll have an indication of the remaining fuel. Some older cars don't even have a fuel gauge, they just have a lamp that glows when it gets low.

I my case I tore the dash apart because the speedometer wasn't working, and the odometer is connected to that. Only after tearing the dash apart could I see the cable to the transmission wasn't turning. Until I found the real problem there wasn't a hurry as I removed the cable several times before I found what was really broke.

On my car the needle fell off the speedo!

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

#97

Post by m463 »

Nifty3929 wrote: post #32
snackbroken wrote: post #26

Earlier quoted context omitted.

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.

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

I think the car is 100% a use case. There are plenty of driving bifocals - they address the need to see the road, but also see the dashboard and controls.

Also, lots of older people get cataract surgery and can be perpetually farsighted (distance iol chosen)

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

#98

Post by pavel_lishin »

snackbroken wrote: post #28
pavel_lishin wrote: post #8

Honestly, even if they could shift focus via some sort of "command" - a muscle tick or something - that would be a game changer as it is. Every time I play D&D, I have to keep taking off and putting on my glasses so I can read my notes, and see my players' faces clearly. (I'm aware of the multifocal glasses mentioned in the article; they didn't work well for me.)

An alternative to multifocals is glasses with one lens for near and the other for far or to use a contact lens in only one eye in addition to your normal glasses. This also obviously comes with downsides that take some getting used to but some people prefer it.

I don't want to reject this idea immediately without trying it, but this really sounds like it would be unpleasant to experience on a day to day.

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

#99

Post by pavel_lishin »

gedy wrote: post #15
pavel_lishin wrote: post #8

Honestly, even if they could shift focus via some sort of "command" - a muscle tick or something - that would be a game changer as it is. Every time I play D&D, I have to keep taking off and putting on my glasses so I can read my notes, and see my players' faces clearly. (I'm aware of the multifocal glasses mentioned in the article; they didn't work well for me.)

I'm in a similar situation but found that getting "computer glasses" made which use the near prescription (and are not for long distance) work well for this. (I run D&D as well lol) I could not handle multifocal at all, was disorienting for me.

How does that work for far vision?

I'm nearsighted, myself - so for near vision, I need zero prescription at the moment. (We'll see how that changes in a deacde, I guess.)

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

#100

Post by jurgenburgen »

therealpygon wrote: post #95
kelnos wrote: post #84

Earlier quoted context omitted.

I don't think the FDA should be regulating based on whether or not it's safe to drive while using something. There are plenty of FDA-approved drugs that should not be taken while operating a motor vehicle.

Are those drugs required for driving by the people who use them? I would expect if so, they would be tested more thoroughly before putting people on the road with a new drug, much like I’d rather not have someone driving toward me at a combined opposing speed of 100-120mph, two feet apart, while relying on “we didn’t think it will be a problem but we didn’t bother to test”. That said, there is certainly room for an i…

Or they could just ban using these glasses while driving. There’s plenty of people who don’t actually need to drive who would buy this.
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