vitamin A...

[John Larkin]

Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[John S]

On 6/14/2022 12:29 PM, John Larkin wrote:

Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.

Bausch and Lomb make PreserVision AREDS pills for that purpose. I take
them because I have the early stage of macular degeneration.

tinyurl.com/rchzazrc

 

[John Larkin]

On Tue, 14 Jun 2022 13:28:39 -0500, John S <Sophi.2@invalid.org>
wrote:

On 6/14/2022 12:29 PM, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.


Bausch and Lomb make PreserVision AREDS pills for that purpose. I take
them because I have the early stage of macular degeneration.

tinyurl.com/rchzazrc

That stuff looks good.

I was disgnosed with major MD and got a pretty gloomy lecture about my
future. Then they did a retinal tomograph just for fun and found a
macular hole, not MD. That can probably be repaired, but the scare
made me amp up on Vitamin A.

My eyesight is horrible anyhow. My Mantis is indispensable when
probing or soldering or hacking small stuff.

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[Martin Brown]

On 14/06/2022 18:29, John Larkin wrote:

Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.

Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice

--
Regards,
Martin Brown

 

[Fred Bloggs]

On Tuesday, June 14, 2022 at 1:30:08 PM UTC-4, John Larkin wrote:

Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.

Supplements will not reverse an existing condition. There is significant reduction of progression from intermediate to advanced AMD, 25%, which is something. AREDS and AREDS2 supplements do not prevent AMD onset. The beta-carotene bit is from an old study out of Finland that yielded surprising results. They were dosing the test subjects with huge 50,000 IU (or something ) dosing, and it was Finland so of course they were all drunks. Even supplementation with vitamin E has been shown to increase death from all causes by 13% for some reason no one knows. You can\'t even be outside during a thunderstorm, the vitamin E will attract a strike.

https://www.nei.nih.gov/research/clinical-trials/age-related-eye-disease-studies-aredsareds2/about-areds-and-areds2

That\'s the one and only link I\'m giving for that certain group of worthless link-collectors.

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[Tabby]

On Tuesday, 14 June 2022 at 20:23:23 UTC+1, Martin Brown wrote:

On 14/06/2022 18:29, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.
Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice

Carrots don\'t contain vitamin A, they have carotenes. The rate of conversion to vitamin A in humans is close to zero.

 

[Lasse Langwadt Christensen]

tirsdag den 14. juni 2022 kl. 23.25.16 UTC+2 skrev Tabby:

On Tuesday, 14 June 2022 at 20:23:23 UTC+1, Martin Brown wrote:
On 14/06/2022 18:29, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.
Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice
Carrots don\'t contain vitamin A, they have carotenes. The rate of conversion to vitamin A in humans is close to zero.

hmm https://academic.oup.com/ajcn/article/91/5/1468S/4597430

 

[Clifford Heath]

On 15/6/22 07:38, Lasse Langwadt Christensen wrote:

tirsdag den 14. juni 2022 kl. 23.25.16 UTC+2 skrev Tabby:
On Tuesday, 14 June 2022 at 20:23:23 UTC+1, Martin Brown wrote:
On 14/06/2022 18:29, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.
Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice
Carrots don\'t contain vitamin A, they have carotenes. The rate of conversion to vitamin A in humans is close to zero.

hmm https://academic.oup.com/ajcn/article/91/5/1468S/4597430

Conversion rates as low as 28:1... meaning a single carrot will give you
sufficient vitamin-A for months of normal sight.

We don\'t use much retinol. Buying vitamin A pills is just dumb.

 

[Martin Rid]

John Larkin <jlarkin@highland_atwork_technology.com> Wrote in message:r
> On Tue, 14 Jun 2022 13:28:39 -0500, John S <Sophi.2@invalid.org>wrote:>On 6/14/2022 12:29 PM, John Larkin wrote:>> Eyesight is important in this biz.>> >> Make sure you get lots of vitamin A, but not too much. It\'s good for>> your retinas and can help prevent macular degeneration.>> >>Bausch and Lomb make PreserVision AREDS pills for that purpose. I take >them because I have the early stage of macular degeneration.>>tinyurl.com/rchzazrcThat stuff looks good.I was disgnosed with major MD and got a pretty gloomy lecture about myfuture. Then they did a retinal tomograph just for fun and found amacular hole, not MD. That can probably be repaired, but the scaremade me amp up on Vitamin A.My eyesight is horrible anyhow. My Mantis is indispensable whenprobing or soldering or hacking small stuff.-- If a man will begin with certainties, he shall end with doubts, but if he will be content to begin with doubts he shall end in certainties.Francis Bacon

Make sure you use a fume extractor when soldering. That flux
isn\'t good for your corneas either.

Cheers
--


----Android NewsGroup Reader----
https://piaohong.s3-us-west-2.amazonaws.com/usenet/index.html

 

[John Doe]

John Larkin <jlarkin@highland_atwork_technology.com> wrote:

Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.

I doubt anything besides maybe a good diet helps prevent macular
degeneration. I never got any such advice before cataract surgery.

Nothing against vitamins, I have always taken ordinary multivitamin
multimineral supplements like One-A-Day or Centrum (regular).

You don\'t know how bad your eyesight is until they stick new lenses in
there. I was in-line street skating (\"rollerblading\" to the layman) for
years, often at nighttime. Might have been even more fun with clear
vision. DEFINITELY would have been more fun with a modern, lightweight,
extremely bright headlamp.

 

[a a]

On Tuesday, 14 June 2022 at 23:25:16 UTC+2, Tabby wrote:

On Tuesday, 14 June 2022 at 20:23:23 UTC+1, Martin Brown wrote:
On 14/06/2022 18:29, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.
Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice
Carrots don\'t contain vitamin A, they have carotenes. The rate of conversion to vitamin A in humans is close to zero.
fake

Actually, carrots are pretty rich in carotenoids. 100g contain 8,280 mcg of beta-carotene and 3,480 of alpha-carotene. Practically, a medium carrot has about 500 mcg RAE of vitamin A, or 56% of the recommended daily intake! Furthermore, you could drink carrot juice to really boost your vitamin A intake.
How much vitamin A in carrots? - LazyPlant
lazyplant.com/vegan-diet/vitamin-a-in-carrots/
lazyplant.com/vegan-diet/vitamin-a-in-carrots/


Is Vitamin A In Carrots - TheSuperHealthyFood
https://thesuperhealthyfood.com/is-vitamin-a-in-carrots

12.06.2022 · Carrots are an excellent source of vitamin A in the form of beta carotene. They are also a good source of several B vitamins, as well as vitamin K and potassium. Other plant


What are the benefits of vitamin A in carrots?
Vitamin A is a fat-soluble vitamin that increases body immunity, organ function, and eye health. Vitamin A also increases visual acuity to adjust your eyes in dimming light. One cup of raw carrots gives 50 calories and 430% of the daily value for vitamin A and cooked carrots provide 530% of the recommended daily value per cup.

10 Vitamin in Carrots: Nutrition Facts and Health Benefits
www.thewownutrition.com/vitamin-in-carrots/

 

[John Larkin]

On Tue, 14 Jun 2022 18:56:50 -0400 (EDT), Martin Rid
<martin_riddle@verison.net> wrote:

John Larkin <jlarkin@highland_atwork_technology.com> Wrote in message:r
On Tue, 14 Jun 2022 13:28:39 -0500, John S <Sophi.2@invalid.org>wrote:>On 6/14/2022 12:29 PM, John Larkin wrote:>> Eyesight is important in this biz.>> >> Make sure you get lots of vitamin A, but not too much. It\'s good for>> your retinas and can help prevent macular degeneration.>> >>Bausch and Lomb make PreserVision AREDS pills for that purpose. I take >them because I have the early stage of macular degeneration.>>tinyurl.com/rchzazrcThat stuff looks good.I was disgnosed with major MD and got a pretty gloomy lecture about myfuture. Then they did a retinal tomograph just for fun and found amacular hole, not MD. That can probably be repaired, but the scaremade me amp up on Vitamin A.My eyesight is horrible anyhow. My Mantis is indispensable whenprobing or soldering or hacking small stuff.-- If a man will begin with certainties, he shall end with doubts, but if he will be content to begin with doubts he shall end in certainties.Francis Bacon

Make sure you use a fume extractor when soldering. That flux
isn\'t good for your corneas either.

Cheers

My eyes are tucked into the Mantis visor, about 12\" above the bench.
Another great thing about the Mantis is the huge working distance.

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[David Eather]

On 15/06/2022 3:29 am, John Larkin wrote:

Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.

You might also like to try Taurine which has heaps of research showing a
positive (albeit sometimes small) benefit. And Lutein which has a long
history of use to prevent and treat MD.

I might be on JL\'s shit list so can someone who isn\'t respond so he
see\'s this - nothing worse than sitting in the dark if you don\'t have to.

 

[rbowman]

On 06/14/2022 01:16 PM, John Larkin wrote:

I was disgnosed with major MD and got a pretty gloomy lecture about my
future. Then they did a retinal tomograph just for fun and found a
macular hole, not MD. That can probably be repaired, but the scare
made me amp up on Vitamin A.

I had a macular hole repair about 4 years ago. The operation itself
isn\'t a big deal. The vitreous fluid is removed and the eye inflated
with a gas. Sulfur hexafluoride is the more modern one and absorbs
faster. That\'s where the fun begins. To ensure the gas supports the
retina you are required to be face down for about three days depending
on the surgeon. As a bonus the SF6 hastens cataract formation.

There\'s an interesting effect as the eyeball refills with vitreous
fluid. It brings home the fact that the image on the retina is upside
down and your brain does some post-processing.

I haven\'t done the cataract operation yet although I should. It takes a
long time for the hole to refill with sensors and between that and the
cataract I still see a little distortion in printed material etc.

 

[server]

On Tue, 14 Jun 2022 20:24:01 -0600, rbowman <bowman@montana.com>
wrote:

On 06/14/2022 01:16 PM, John Larkin wrote:
I was disgnosed with major MD and got a pretty gloomy lecture about my
future. Then they did a retinal tomograph just for fun and found a
macular hole, not MD. That can probably be repaired, but the scare
made me amp up on Vitamin A.

I had a macular hole repair about 4 years ago. The operation itself
isn\'t a big deal. The vitreous fluid is removed and the eye inflated
with a gas. Sulfur hexafluoride is the more modern one and absorbs
faster. That\'s where the fun begins. To ensure the gas supports the
retina you are required to be face down for about three days depending
on the surgeon. As a bonus the SF6 hastens cataract formation.

There\'s an interesting effect as the eyeball refills with vitreous
fluid. It brings home the fact that the image on the retina is upside
down and your brain does some post-processing.

I haven\'t done the cataract operation yet although I should. It takes a
long time for the hole to refill with sensors and between that and the
cataract I still see a little distortion in printed material etc.

I had cataract surgery on my right eye. Followed by a tear, a massive
retinal detach, vitrectomy, retina repair, laser spot welding,
secondary cataract, two laser fixes for that. Everything went wrong
but it\'s fine now. It\'s stunning how good opthomologists are these
days.

Some people say that the inverted human retina is a mistake of
evolution. I disagree: virtuous humor is the mistake. Eyes are much
better off with liquid inside than with gummy gel.

Time to do the left one now: first cataract surgery, then the macular
hole repair. These things take 20 minutes and don\'t hurt at all.

I\'m going for nearsighted in both eyes, for reading and computing and
close work.





--

Anybody can count to one.

- Robert Widlar

 

[rbowman]

On 06/14/2022 10:10 PM, jlarkin@highlandsniptechnology.com wrote:

I had cataract surgery on my right eye. Followed by a tear, a massive
retinal detach, vitrectomy, retina repair, laser spot welding,
secondary cataract, two laser fixes for that. Everything went wrong
but it\'s fine now. It\'s stunning how good opthomologists are these
days.

I had a little welding done prior to the hole repair. The shrinking
vitreous resulted in a little bleeder and I suddenly had floaters from
hell.

Some people say that the inverted human retina is a mistake of
evolution. I disagree: virtuous humor is the mistake. Eyes are much
better off with liquid inside than with gummy gel.

It\'s not a mistake, just optics. I recall an experiment where the
subject wore prismatic glasses that would invert the image. In a few
days the brain adapted. The optic chiasm is another design feature,
sort of a signal splitter followed by a mixer.

I\'m going for nearsighted in both eyes, for reading and computing and
close work.

I\'ll probably go nearsighted for my right eye since it naturally is more
nearsighted than my left.

 

[John Larkin]

On Wed, 15 Jun 2022 08:15:42 -0600, rbowman <bowman@montana.com>
wrote:

On 06/14/2022 10:10 PM, jlarkin@highlandsniptechnology.com wrote:
I had cataract surgery on my right eye. Followed by a tear, a massive
retinal detach, vitrectomy, retina repair, laser spot welding,
secondary cataract, two laser fixes for that. Everything went wrong
but it\'s fine now. It\'s stunning how good opthomologists are these
days.

I had a little welding done prior to the hole repair. The shrinking
vitreous resulted in a little bleeder and I suddenly had floaters from
hell.

Some people say that the inverted human retina is a mistake of
evolution. I disagree: virtuous humor is the mistake. Eyes are much
better off with liquid inside than with gummy gel.

It\'s not a mistake, just optics. I recall an experiment where the
subject wore prismatic glasses that would invert the image. In a few
days the brain adapted. The optic chiasm is another design feature,
sort of a signal splitter followed by a mixer.


I\'m going for nearsighted in both eyes, for reading and computing and
close work.

I\'ll probably go nearsighted for my right eye since it naturally is more
nearsighted than my left.

If you skew the focal lengths, your brain will merge the images and
you can get sharp vision over a pretty wide distance range. My fake
lens focusses at about 17\", so the new one might be 10 or 12. I\'m
going to talk to the cataract surgeon about how far that concept can
be pushed. 17 works for computing and most reading but is marginal for
fine print.

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[John Larkin]

On Wed, 15 Jun 2022 10:34:22 +1000, David Eather
<eatREMOVEher@tpg.com.au> wrote:

On 15/06/2022 3:29 am, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.


You might also like to try Taurine which has heaps of research showing a
positive (albeit sometimes small) benefit. And Lutein which has a long
history of use to prevent and treat MD.

I might be on JL\'s shit list so can someone who isn\'t respond so he
see\'s this - nothing worse than sitting in the dark if you don\'t have to.

There are a few people here who are not worth reading, much less
responding to, but you\'re not one of them.

Eyesight is not a very far off-topic issue for electronic designers.
Our biz is very visual and often the parts are hard to see.



--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

 

[Tabby]

On Tuesday, 14 June 2022 at 22:38:27 UTC+1, lang...@fonz.dk wrote:

tirsdag den 14. juni 2022 kl. 23.25.16 UTC+2 skrev Tabby:
On Tuesday, 14 June 2022 at 20:23:23 UTC+1, Martin Brown wrote:
On 14/06/2022 18:29, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.
Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice
Carrots don\'t contain vitamin A, they have carotenes. The rate of conversion to vitamin A in humans is close to zero.
hmm https://academic.oup.com/ajcn/article/91/5/1468S/4597430

says \" There is a wide variation in conversion factors reported not only between different studies but also between individuals in a particular study.\"
so one can not rely on carotenes ro provide vit A.

 

[Tabby]

On Wednesday, 15 June 2022 at 01:09:08 UTC+1, a a wrote:

On Tuesday, 14 June 2022 at 23:25:16 UTC+2, Tabby wrote:
On Tuesday, 14 June 2022 at 20:23:23 UTC+1, Martin Brown wrote:
On 14/06/2022 18:29, John Larkin wrote:
Eyesight is important in this biz.

Make sure you get lots of vitamin A, but not too much. It\'s good for
your retinas and can help prevent macular degeneration.
Vitamin A is one of the more poisonous vitamins. It is quite hard to be
deficient in it with a normal diet. Eating polar bear liver can be fatal
because of the high concentration of vitamin A in it. Second one down:

https://blogs.unimelb.edu.au/sciencecommunication/2016/10/04/eating-these-animals-just-might-kill-you/#

Or the infamous case of the UK guy with a carrot juice addiction.

https://www.nytimes.com/1974/02/17/archives/carrotjuice-addiction-cited-in-britons-death.html

Golden rice has been made by GM to avoid problems in the third world.

https://en.wikipedia.org/wiki/Golden_rice
Carrots don\'t contain vitamin A, they have carotenes. The rate of conversion to vitamin A in humans is close to zero.
fake

Actually, carrots are pretty rich in carotenoids. 100g contain 8,280 mcg of beta-carotene and 3,480 of alpha-carotene. Practically, a medium carrot has about 500 mcg RAE of vitamin A, or 56% of the recommended daily intake! Furthermore, you could drink carrot juice to really boost your vitamin A intake.
How much vitamin A in carrots? - LazyPlant
lazyplant.com/vegan-diet/vitamin-a-in-carrots/
lazyplant.com/vegan-diet/vitamin-a-in-carrots/


Is Vitamin A In Carrots - TheSuperHealthyFood
https://thesuperhealthyfood.com/is-vitamin-a-in-carrots

12.06.2022 · Carrots are an excellent source of vitamin A in the form of beta carotene. They are also a good source of several B vitamins, as well as vitamin K and potassium. Other plant


What are the benefits of vitamin A in carrots?
Vitamin A is a fat-soluble vitamin that increases body immunity, organ function, and eye health. Vitamin A also increases visual acuity to adjust your eyes in dimming light. One cup of raw carrots gives 50 calories and 430% of the daily value for vitamin A and cooked carrots provide 530% of the recommended daily value per cup.

10 Vitamin in Carrots: Nutrition Facts and Health Benefits
https://thesuperhealthyfood.com/is-vitamin-a-in-carrots

your refs are simplistic misinformation. Read studies if you want to know.