Here Ricksy is pretending like he doesn't know that the idiot stalker
"Edward Hernandez" is forging my ID while flagging threads "off topic".

Probably was drunk again...

--
Ricky <gnuarm.deletethisbit@gmail.com> wrote:

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> Subject: Re: vitamin A
> From: Ricky <gnuarm.deletethisbit@gmail.com>
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> Xref: reader02.eternal-september.org sci.electronics.design:671771
>
> On Tuesday, June 14, 2022 at 7:48:21 PM UTC-4, John Doe wrote:
>> 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.
>
> Someone explain to me why the John Doe troll marks some threads as OFF TOPIC vehemently, while participating in other off topic threads?
>
> In other words, what the f**k is wrong with this guy? Daine Bramage?
>
> --
>
> Rick C.
>
> - Get 1,000 miles of free Supercharging
> - Tesla referral code - https://ts.la/richard11209
>
>

In message-id <t6nt3e$7bp$3@dont-email.me>
(http://al.howardknight.net/?ID=165357273000) posted Thu, 26 May 2022
12:50:54 -0000 (UTC) John Dope stated:

> Always Wrong, the utterly foulmouthed group idiot, adding absolutely
> NOTHING but insults to this thread, as usual...

Yet, since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) John Dope's post ratio
to USENET (**) has been 59.3% of its posts contributing "nothing except
insults" to USENET.

** Since Wed, 5 Jan 2022 04:10:38 -0000 (UTC) John Dope has posted at
least 1785 articles to USENET. Of which 173 have been pure insults and
885 have been John Dope "troll format" postings.

The John Dope troll stated the following in message-id
<sdhn7c$pkp$4@dont-email.me>:

> The troll doesn't even know how to format a USENET post...

And the John Dope troll stated the following in message-id
<sg3kr7$qt5$1@dont-email.me>:

> The reason Bozo cannot figure out how to get Google to keep from
> breaking its lines in inappropriate places is because Bozo is
> CLUELESS...

And yet, the clueless John Dope troll has itself posted yet another
incorrectly formatted USENET posting on Thu, 16 Jun 2022 12:54:42 -0000
(UTC) in message-id <t8f96i$n4h$4@dont-email.me>.

This posting is a public service announcement for any google groups
readers who happen by to point out that Troll Doe does not even follow
the rules it uses to troll other posters.

svYzwuUeaXR7

On Tuesday, June 14, 2022 at 3:17:06 PM UTC-4, John Larkin wrote:
> On Tue, 14 Jun 2022 13:28:39 -0500, John S <Sop...@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.

Not to me it doesn't. I just took a closer look at the label and see the Vitamin A content is 100% beta carotene at 4296 mcg 2-tablet single serving dose, over 400% RDA. That's outright high risk, too much actually for no restorative effect at all, and modest effectiveness of preventing MD progression.

If you take a look at Centrum, a GlaxoSmithKline product, people who know about all there is to know about pharmaceuticals and actually make major breakthroughs in the science, their product is 1050 mcg daily, 117% RDA, and only 29% is derived from beta-carotene. That is a much saner product that will help you without sending you to any early grave.

https://www.centrum.com/learn/vitamins-minerals/vitamin-a/

There're a bunch of ill-health problems that impair absorption of Vitamin A.. Liver disease is a big one:

What are the causes of vitamin A deficiency?
Coeliac disease.
Crohn's disease.
Giardiasis - an infection of the gut (bowel).
Cystic fibrosis.
Diseases affecting the pancreas.
Liver cirrhosis.
Obstruction of the flow of bile from your liver and gallbladder into your gut
thyroid dysfunction
others

Another thing to watch for is deficiency due to medication.
Here's an exhaustive list of everything:
https://lpi.oregonstate.edu/mic/drug-nutrient-interactions

Another way to kill yourself:
Some products that may interact with this vitamin [A] include: acitretin, alitretinoin, bexarotene, cholestyramine, isotretinoin, tretinoin, other products that contain vitamin A (such as multivitamins), warfarin. Avoid taking vitamin A at the same time as you take neomycin, orlistat, and mineral oil.
https://www.webmd.com/drugs/2/drug-1259/vitamin-a-oral/details

>
> 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

On 6/15/2022 4:49 PM, John Larkin wrote:
> 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.
>

My problem at 43 such as it is at 43 y/o is my distance vision is
excellent, 20/15, but I'm just starting to notice the effects of
presbyopia enough for some small labels to be troublesome...

On 6/19/2022 9:29 AM, bitrex wrote:
> On 6/15/2022 4:49 PM, John Larkin wrote:
>> 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.
>>
>
> My problem at 43 such as it is at 43 y/o is my distance vision is
> excellent, 20/15, but I'm just starting to notice the effects of
> presbyopia enough for some small labels to be troublesome...
>

Please substitute "My problem such as it is at 43 y/o", technical
difficulties unrelated to age I hope

On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
> On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
>> On 6/15/2022 4:49 PM, John Larkin wrote:
>>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather <eatREM...@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.
>
> By which John Larkin means that you haven't pointed out that he's been an idiot all that often.
>
>>> 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.
>
> Not if you have the right optical tools. Low power long working distance microscopes can be very useful.
>
>> My problem at 43 such as it is at 43 y/o is my distance vision is excellent, 20/15, but I'm just starting to notice the effects of presbyopia enough for some small labels to be troublesome...
>
> Starting off short-sighted in at least one eye can be very handy. For years I just took off my spectacles.
>

Never needed glasses before but I think it's definitely time for a pair
of readers. My girlfriend who's worn specs most of her life has little
sympathy 8-)

On Sunday, June 19, 2022 at 7:30:42 PM UTC-4, bitrex wrote:
> On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
> > On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
> >> On 6/15/2022 4:49 PM, John Larkin wrote:
> >>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather <eatREM...@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.
> >
> > By which John Larkin means that you haven't pointed out that he's been an idiot all that often.
> >
> >>> 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.
> >
> > Not if you have the right optical tools. Low power long working distance microscopes can be very useful.
> >
> >> My problem at 43 such as it is at 43 y/o is my distance vision is excellent, 20/15, but I'm just starting to notice the effects of presbyopia enough for some small labels to be troublesome...
> >
> > Starting off short-sighted in at least one eye can be very handy. For years I just took off my spectacles.
> >
> Never needed glasses before but I think it's definitely time for a pair
> of readers. My girlfriend who's worn specs most of her life has little
> sympathy 8-)

Go into any department store with a pharmacy aisle and buy a 4-pack of readers for ten bucks. No need to make a big deal out of it.

Fred Bloggs wrote:
> On Sunday, June 19, 2022 at 7:30:42 PM UTC-4, bitrex wrote:
>> On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
>>> On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
>>>> On 6/15/2022 4:49 PM, John Larkin wrote:
>>>>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather
>>>>> <eatREM...@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.
>>>
>>> By which John Larkin means that you haven't pointed out that he's
>>> been an idiot all that often.
>>>
>>>>> 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.
>>>
>>> Not if you have the right optical tools. Low power long working
>>> distance microscopes can be very useful.
>>>
>>>> My problem at 43 such as it is at 43 y/o is my distance vision
>>>> is excellent, 20/15, but I'm just starting to notice the
>>>> effects of presbyopia enough for some small labels to be
>>>> troublesome...
>>>
>>> Starting off short-sighted in at least one eye can be very handy.
>>> For years I just took off my spectacles.
>>>
>> Never needed glasses before but I think it's definitely time for a
>> pair of readers. My girlfriend who's worn specs most of her life
>> has little sympathy 8-)
>
> Go into any department store with a pharmacy aisle and buy a 4-pack
> of readers for ten bucks. No need to make a big deal out of it.
>

If your eyes are sufficiently close together. ;)

Men's readers all come with 65-mm inter-pupillary distance, I believe,
which will reliably give me a headache in 5 minutes.

Zenni Optical will make custom single-vision glasses for a very few
bucks. I measured my IPD with a ruler and a mirror, then ordered
glasses with that +- 1 mm and picked the one that produced the least eye
strain (69 mm in my case).

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

On Tue, 21 Jun 2022 12:54:47 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

>Fred Bloggs wrote:
>> On Sunday, June 19, 2022 at 7:30:42 PM UTC-4, bitrex wrote:
>>> On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
>>>> On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
>>>>> On 6/15/2022 4:49 PM, John Larkin wrote:
>>>>>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather
>>>>>> <eatREM...@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.
>>>>
>>>> By which John Larkin means that you haven't pointed out that he's
>>>> been an idiot all that often.
>>>>
>>>>>> 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.
>>>>
>>>> Not if you have the right optical tools. Low power long working
>>>> distance microscopes can be very useful.
>>>>
>>>>> My problem at 43 such as it is at 43 y/o is my distance vision
>>>>> is excellent, 20/15, but I'm just starting to notice the
>>>>> effects of presbyopia enough for some small labels to be
>>>>> troublesome...
>>>>
>>>> Starting off short-sighted in at least one eye can be very handy.
>>>> For years I just took off my spectacles.
>>>>
>>> Never needed glasses before but I think it's definitely time for a
>>> pair of readers. My girlfriend who's worn specs most of her life
>>> has little sympathy 8-)
>>
>> Go into any department store with a pharmacy aisle and buy a 4-pack
>> of readers for ten bucks. No need to make a big deal out of it.
>>
>
>If your eyes are sufficiently close together. ;)
>
>Men's readers all come with 65-mm inter-pupillary distance, I believe,
>which will reliably give me a headache in 5 minutes.
>
>Zenni Optical will make custom single-vision glasses for a very few
>bucks. I measured my IPD with a ruler and a mirror, then ordered
>glasses with that +- 1 mm and picked the one that produced the least eye
>strain (69 mm in my case).

For that wide-eyed ingenue look?

Joe Gwinn

Joe Gwinn wrote:
> On Tue, 21 Jun 2022 12:54:47 -0400, Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>
>> Fred Bloggs wrote:
<sniiip>
>>> Go into any department store with a pharmacy aisle and buy a 4-pack
>>> of readers for ten bucks. No need to make a big deal out of it.
>>>
>>
>> If your eyes are sufficiently close together. ;)
>>
>> Men's readers all come with 65-mm inter-pupillary distance, I believe,
>> which will reliably give me a headache in 5 minutes.
>>
>> Zenni Optical will make custom single-vision glasses for a very few
>> bucks. I measured my IPD with a ruler and a mirror, then ordered
>> glasses with that +- 1 mm and picked the one that produced the least eye
>> strain (69 mm in my case).
>
> For that wide-eyed ingenue look?
>
> Joe Gwinn
>

That must be it. Or possibly I'm getting in touch with my inner codfish. ;)

Cheers

Phil Hobbs

On Tue, 21 Jun 2022 12:54:47 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

>Fred Bloggs wrote:
>> On Sunday, June 19, 2022 at 7:30:42 PM UTC-4, bitrex wrote:
>>> On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
>>>> On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
>>>>> On 6/15/2022 4:49 PM, John Larkin wrote:
>>>>>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather
>>>>>> <eatREM...@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.
>>>>
>>>> By which John Larkin means that you haven't pointed out that he's
>>>> been an idiot all that often.
>>>>
>>>>>> 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.
>>>>
>>>> Not if you have the right optical tools. Low power long working
>>>> distance microscopes can be very useful.
>>>>
>>>>> My problem at 43 such as it is at 43 y/o is my distance vision
>>>>> is excellent, 20/15, but I'm just starting to notice the
>>>>> effects of presbyopia enough for some small labels to be
>>>>> troublesome...
>>>>
>>>> Starting off short-sighted in at least one eye can be very handy.
>>>> For years I just took off my spectacles.
>>>>
>>> Never needed glasses before but I think it's definitely time for a
>>> pair of readers. My girlfriend who's worn specs most of her life
>>> has little sympathy 8-)
>>
>> Go into any department store with a pharmacy aisle and buy a 4-pack
>> of readers for ten bucks. No need to make a big deal out of it.
>>
>
>If your eyes are sufficiently close together. ;)
>
>Men's readers all come with 65-mm inter-pupillary distance, I believe,
>which will reliably give me a headache in 5 minutes.
>
>Zenni Optical will make custom single-vision glasses for a very few
>bucks. I measured my IPD with a ruler and a mirror, then ordered
>glasses with that +- 1 mm and picked the one that produced the least eye
>strain (69 mm in my case).
>
>Cheers
>
>Phil Hobbs

I'm 69 mm too. I've seen the recommendation that reading glasses
should be a few mm closer.

--

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

On Tuesday, June 21, 2022 at 12:55:04 PM UTC-4, Phil Hobbs wrote:
> Fred Bloggs wrote:
> > On Sunday, June 19, 2022 at 7:30:42 PM UTC-4, bitrex wrote:
> >> On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
> >>> On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
> >>>> On 6/15/2022 4:49 PM, John Larkin wrote:
> >>>>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather
> >>>>> <eatREM...@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.
> >>>
> >>> By which John Larkin means that you haven't pointed out that he's
> >>> been an idiot all that often.
> >>>
> >>>>> 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.
> >>>
> >>> Not if you have the right optical tools. Low power long working
> >>> distance microscopes can be very useful.
> >>>
> >>>> My problem at 43 such as it is at 43 y/o is my distance vision
> >>>> is excellent, 20/15, but I'm just starting to notice the
> >>>> effects of presbyopia enough for some small labels to be
> >>>> troublesome...
> >>>
> >>> Starting off short-sighted in at least one eye can be very handy.
> >>> For years I just took off my spectacles.
> >>>
> >> Never needed glasses before but I think it's definitely time for a
> >> pair of readers. My girlfriend who's worn specs most of her life
> >> has little sympathy 8-)
> >
> > Go into any department store with a pharmacy aisle and buy a 4-pack
> > of readers for ten bucks. No need to make a big deal out of it.
> >
> If your eyes are sufficiently close together. ;)
>
> Men's readers all come with 65-mm inter-pupillary distance, I believe,
> which will reliably give me a headache in 5 minutes.
>
> Zenni Optical will make custom single-vision glasses for a very few
> bucks. I measured my IPD with a ruler and a mirror, then ordered
> glasses with that +- 1 mm and picked the one that produced the least eye
> strain (69 mm in my case).

That must not be very critical for most people since the manufacturers sell gazillions of them. Many places let you try them on and read a test chart to determine the best magnification. If the glasses don't feel right, don't buy them. The real headache comes from requiring different magnifications for the two eyes. Readers don't accommodate that.
The one stop shop is WalMart. If your $2.00 readers aren't working for you they will refund your money no questions asked. And they have a vision and glasses center in store to schedule an eye exam, obtain a prescription, and buy your prescription glasses. Actually once you have your prescription you can do everything else online and get your glasses delivered to you next day. I never see a long line of people waiting a long time to be seen as with the franchise vision centers. A lot of people equate low price with low quality, then they end up paying a high price for a low price frame from those sickening franchise vision centers. WalMart is the same quality of product and service as any of the overprice glitz vision franchises out there.
https://www.walmart.com/cp/vision-centers/1078944

>
> Cheers
>
> Phil Hobbs
>
> --
> Dr Philip C D Hobbs
> Principal Consultant
> ElectroOptical Innovations LLC / Hobbs ElectroOptics
> Optics, Electro-optics, Photonics, Analog Electronics
> Briarcliff Manor NY 10510
>
> http://electrooptical.net
> http://hobbs-eo.com

On Tue, 21 Jun 2022 17:17:12 -0700, John Larkin
<jlarkin@highland_atwork_technology.com> wrote:

>On Tue, 21 Jun 2022 12:54:47 -0400, Phil Hobbs
><pcdhSpamMeSenseless@electrooptical.net> wrote:
>
>>Fred Bloggs wrote:
>>> On Sunday, June 19, 2022 at 7:30:42 PM UTC-4, bitrex wrote:
>>>> On 6/19/2022 9:41 AM, Anthony William Sloman wrote:
>>>>> On Sunday, June 19, 2022 at 3:29:44 PM UTC+2, bitrex wrote:
>>>>>> On 6/15/2022 4:49 PM, John Larkin wrote:
>>>>>>> On Wed, 15 Jun 2022 10:34:22 +1000, David Eather
>>>>>>> <eatREM...@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.
>>>>>
>>>>> By which John Larkin means that you haven't pointed out that he's
>>>>> been an idiot all that often.
>>>>>
>>>>>>> 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.
>>>>>
>>>>> Not if you have the right optical tools. Low power long working
>>>>> distance microscopes can be very useful.
>>>>>
>>>>>> My problem at 43 such as it is at 43 y/o is my distance vision
>>>>>> is excellent, 20/15, but I'm just starting to notice the
>>>>>> effects of presbyopia enough for some small labels to be
>>>>>> troublesome...
>>>>>
>>>>> Starting off short-sighted in at least one eye can be very handy.
>>>>> For years I just took off my spectacles.
>>>>>
>>>> Never needed glasses before but I think it's definitely time for a
>>>> pair of readers. My girlfriend who's worn specs most of her life
>>>> has little sympathy 8-)
>>>
>>> Go into any department store with a pharmacy aisle and buy a 4-pack
>>> of readers for ten bucks. No need to make a big deal out of it.
>>>
>>
>>If your eyes are sufficiently close together. ;)
>>
>>Men's readers all come with 65-mm inter-pupillary distance, I believe,
>>which will reliably give me a headache in 5 minutes.
>>
>>Zenni Optical will make custom single-vision glasses for a very few
>>bucks. I measured my IPD with a ruler and a mirror, then ordered
>>glasses with that +- 1 mm and picked the one that produced the least eye
>>strain (69 mm in my case).
>>
>>Cheers
>>
>>Phil Hobbs
>
>I'm 69 mm too. I've seen the recommendation that reading glasses
>should be a few mm closer.

Yes, to handle convergence at close distances. IPD is measured for
targets at infinity.

Joe Gwinn