Blue Light Blockers are Bullshit!

[TheBlackAdder]

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[marble falls]

1. So blue blockers are harder on your wallet than blue waves are on your eyes.

[efhmc]

2. I love science. Too bad so little of it is used by Americans.

[whathehell]

11. I do too..Too bad you paint with a bigoted broad brush.

[cstanleytech]

3. Same could be said for transition lenses imo as its not hard to buy a pair of fit over sunglasses

which cost maybe 15 to 20 bucks at Walgreens vs the 100+ or more for the transition coating which is worthless when driving.

[pnwmom]

4. I haven't bought them, but why is the transition coating worthless when driving? n/t

[cstanleytech]

5. Needs UV light to activate and when inside a car the windows naturally reduce the amount of UV light

thus the transition effect is greatly reduced as its dependent on the amount of UV.

[pnwmom]

6. What about in the evening when you're driving toward the sun? Would they help with that? n/t

[cstanleytech]

7. Same issue of needing the UV to activate so its really pretty useless when driving a car.

Really the best option if you need shading when driving is fit overs or prescription sunglasses and of the two I think fit overs are better as they can also block bright light from the sides as well as from the front.

[pnwmom]

8. But when I'm driving into the sun in the evening there is so much light it hurts my eyes.

I am going to get prescription sunglasses, but one of the options offered at Costco is Transitions, so I'm trying to figure this out- - from someone not trying to sell me something.

Thanks for the info!

[cstanleytech]

9. Another option is to simply buy one of the clip on shades that they sale for eyeglasses.

Some attach with tiny hooks and others a clip that allows you to flip them up or down.

[ProfessorGAC]

18. Transitions Cost $100 More?

Not mine. Not even close.
It was $12 bucks per lens. So I paid $24 instead of $20
While it is true that those don't get as dark in a car because of the UV absorption of window glass, they still darken.
Transition lenses aren't binary. They, as the term suggest, darken as needed when sunlight gets brighter. Little by little.
My wife wishes they got a little darker in the car, but they still darken significantly.
For me, since I've driven ragtops for 35+ years, my darken more on sunny, warm weather days because the light isn't all coming in through the glass.
So, while I agree with you some on the tech, your price estimate is way off.
And for 4 to 9 bucks, the convenience of not having to change or place the cover over is worth it every 3 years.
I can afford $2 a year

[cstanleytech]

20. I'm simply stating the price in my area on average from the majority of stores that

sale prescription lenses.
Of course that also might be due to my prescription which is extremely high as even using high index lenses my lenses are about 7 to 8 mm thick.
I really wish I had better eyes though because Oakley has some cool looking prescription sunglasses but they say I cannot use any of them with their Prizm lenses.

[ProfessorGAC]

21. That Sunglass Thing Happens To Astigmatic People, Too

The hip shape of some fashion sunglasses cause an inability to correct astigmatism.
If one insisted on wanting some fashion types, they'd recommend Wayfarers. The flatter lens shape worked.
My sister used to give me some cool sunglasses when they changed stock, but I wore contacts back then.

[cstanleytech]

22. That's probably why they won't do it for me then as I have severe astigmatism.

[GusBob]

12. Can you explain why the incidence of nuclear sclerosis is increasing at a younger age?

Also, narrowing of the anterior chamber?

I think the answer the answer is right in front of your face

In our clinics we are referring folks in their 50's for cataract surgery on a daily basis. 20 years ago it was common for 70+ year olds and almost never for 50 year olds. When the referrals first started happening, it was a shocking head scratcher. Now we think we know the cause. It is probably too late for blue blockers for most folks though.

The anterior chamber narrowing is a great puzzle at present but we think the cause is the same

There is a great new lens out that has promise for computer users, Nuerolens

[TheBlackAdder]

13. I've been working in IT for 35+ years and the funny thing... no one I know has had cataract surgery.

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I am in a team of around 50 people, with another 200 in other areas. The mean age in our groups is around 45 years of age. We have cell phones and dual 24" or 27" monitors. At home I have a 27" monitor at my home workstation and a 27" and two 24" monitors for by remote work workstation. Over the span of my work experience, no one at the job had cataract surgery. My mom did, and she stayed at home and just smoked and tended to the house.

Correlation does not equal causation.

Update: And the monitors we had back in the 80s and 90s were the nuclear ones that pumped out the EMFs.

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[GusBob]

15. Sample size I guess

Our clinics see over 70 patients a day and because we are aggressive in treating the younger cataract patients, we get tons of referrals. Very common comments after treatment: ' man, I never knew I was having such a problem! What a difference!"

part of the correlation is nuclear sclerosis makes one more nearsighted. so if your face is in a screen all day it does not bother you much. the glasses people love this it sells more spectacles. the other factor is it is a slow gradual process and people adapt. Like the frog in the pot of water on the stove

And as far as narrowing of the anterior chamber, well that leads to glaucoma, a completely symptomless disease, until its too late, like the frog on the stove

[TheBlackAdder]

17. Either that or people are attributing something else to it, such as cell phone RF signals.

[GusBob]

23. Maybe but dont know the optics on that

Ya know this topic has kinda forced me to stop and think out of my busy work
1. I have been working for the past year now outside of our business for the IHS on remote reservations. And come to figure: NS only in 70 year olds just like 20 years ago. Not many desk jockies or cell phone users in the unemployed and indigent

2. Who benefits from younger surgery cases? Our surgeons ain’t complaining. Younger patients heal better, are more likely to have better insurance or pay out of pocket, are more likely to upgrade to premium IOLs ( a bigger cash cow in the eyecare industry than blue blockers, hint hint). They are also better walking advertisers than the elderly as they are out about and more active. The pharmaceutical companies benefit too. More post op drops again out of pocket

I mean if you are really worried about consumer protection whats the real deal?

[TheBlackAdder]

24. The largest change to society is the carb-based diet and insulin resistance.

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I was thinking about this the other day, and there is a prevalence of obesity and insulin resistance, even in people who look thin. This can lead to high blood pressure, ocular pressure, floaters, a fatty liver, pre-diabetes type 2, blood in the urine, and a whole slew of other byproducts. Now, the majority of the population is overweight, and this is a number that's been steadily growing, with all of the crappy enriched foods, which strip out all of the nutrients and then replace a small portion of it in synthesized forms.

I had floaters and ocular pressure and I went on a Keto-16 diet since February and with intermittent fasting, I went from 247lbs to 177lbs in just over 6 months. Not only did my BP and sugars go back to normal, but my fatty liver is mostly repaired and will be repaired in another 6 months, the floaters in my eyes were consumed though autophagy and my ocular pressure is back to normal ranges.

So, if I were a betting person, I would say that diet is probably key to this.

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[smirkymonkey]

14. I use the "Night Light" setting on my PC.

I just discovered it, but does anyone know how effective it is compared to blue light lenses? There is a definite difference in the look of the screen. I don't mind it at all. I have only tried it for a few nights, so I can't really tell yet.

[forgotmylogin]

28. I don't think standard blue light is more harmful to your eyes than normal light.

Staring at a computer screen too long without breaks is not good for your eyes, but blue light specifically isn't the cause.

I have read that extended exposure to the normally bluish light from screens and phones essentially fools your brain and body that the sun is still up and can mess with the circadian rhythms that normally cause you to become naturally sleepy at night. People who watch TV in bed or never stop looking at a screen *might* suffer insomnia because of this. That's what night mode and apps like f.lux are for - they change the color profile of your screens when the sun sets more towards amber than blue, which is supposed to let you more naturally relax as your bedtime approaches.

If blue light were that harmful, people would be damaging their eyes every time they walk outside in daylight.

[Quixote1818]

16. Good to know. They ripped me off on my last pair then. After seeing this they won't get me again.

Thanks!

[ProfessorGAC]

19. I'll Go With The Doc On This One

My sister managed and optical joint for a few years.
She was in charge and I know her knowledge of physical science is barely OK.

[milestogo]

25. The ONLY thing I've ever heard about blue light is that if you use devices that transmit blue light

later in the day it can make it more difficult to fall asleep. This is what I heard about blue light, and this is what they told me at lenscrafters when I bought my last pair of glasses.

No bullshit hype, no exaggeration. I do have trouble falling asleep, so I wear the glasses in the evenings.

[Backseat Driver]

26. I use f.lux on my 'puter; free and adjusting

https://download.cnet.com/f-lux/3000-2094_4-75447318.html

[badhair77]

27. Thus post isn't about blue light blockers but some of you seem knowledgeable

about lenses. I had cataract surgery in both eyes thus summer. Headlight glare and sun glare really bother me. Any thoughts on coatings or other options to alleviate that problem?

[dewsgirl]

29. Since they wreak havoc on my battery, I don't use them. This

made me feel a bit better about that.