Naked Science Forum
Life Sciences => Physiology & Medicine => Topic started by: Monox D. I-Fly on 17/01/2019 03:34:20
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Okay, so my mom made me a cup of carrot juice (sometimes mixed with apples) almost everyday by my request so that my eyes will be normal again. Some weeks ago, my distant relative brought us a bottle of honey and for some weeks I mixed the carrot juice with a tablespoon of honey since my mom asked me to consume both yet I don't like the taste of either, so I mixed them in order to get the taste cancel each other out and it worked. I do however stop mixing it with honey since now what remains in the bottle has changed color already. I still have some instant coffee I got from my office since they gave us extra hours and attempted to mix it with the carrot juice but haven't dared to do it yet since I'm afraid the result will be fatal. So, is it safe to mix carrot juice with (powdered) instant coffee?
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cup of carrot juice .. so that my eyes will be normal again
This is a myth that was created in World War 2 to explain why British pilots could shoot down so many German planes.
The real reason was that the British had invented a way to produce a microwave radar small enough to fit in a plane.
https://www.smithsonianmag.com/arts-culture/a-wwii-propaganda-campaign-popularized-the-myth-that-carrots-help-you-see-in-the-dark-28812484/
I still have some instant coffee ...and attempted to mix it with the carrot juice but haven't dared to do it yet since I'm afraid the result will be fatal.
Everything you eat and drink gets mixed together in your stomach and intestines.
- You have been drinking carrot juice with no adverse effects
- I presume you have been drinking coffee for some time (?)
- So mixing them before putting them in your mouth won't be any different
- I would just limit the amount of instant coffee to the amount you would normally use in a cup of coffee.
Note: If you drink far too much carrot juice, your skin can turn orange..
https://en.wikipedia.org/wiki/Carotenosis
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cup of carrot juice .. so that my eyes will be normal again
This is a myth that was created in World War 2 to explain why British pilots could shoot down so many German planes.
The real reason was that the British had invented a way to produce a microwave radar small enough to fit in a plane.
https://www.smithsonianmag.com/arts-culture/a-wwii-propaganda-campaign-popularized-the-myth-that-carrots-help-you-see-in-the-dark-28812484/
Ummm... What, what? Aren't carrots supposed to contain a lot of vitamin A which is good for the eyes?
I still have some instant coffee ...and attempted to mix it with the carrot juice but haven't dared to do it yet since I'm afraid the result will be fatal.
Everything you eat and drink gets mixed together in your stomach and intestines.
- You have been drinking carrot juice with no adverse effects
- I presume you have been drinking coffee for some time (?)
- So mixing them before putting them in your mouth won't be any different
- I would just limit the amount of instant coffee to the amount you would normally use in a cup of coffee.
Note: If you drink far too much carrot juice, your skin can turn orange..
https://en.wikipedia.org/wiki/Carotenosis
But... Sometimes mixing two different things before being put in the mouth can be fatal. The most popular cases in my country are people who mixed headache medicine and soda. They didn't survive a day after that.
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Like many plats, carrots contain carotene which can be converted to vitamin A in the body.
But, once you have enough vitamin A the body stops bothering to make more.
A balanced diet will provide enough vitamin A (either as such from animal sources or as carotene from plants) so there's no need to take extra.
I'm a bit concerned about you saying
so that my eyes will be normal again.
If there's something abnormal about your eyes you need to get the advice of a doctor- not your mother's view of a WWII legend.
Also, but much less importantly
https://en.wikipedia.org/wiki/Carotenosis
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It's not just my mother's view, the school curriculum in my country actually teaches students that carrots are good for our eyes.
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mixing two different things before being put in the mouth can be fatal. The most popular cases in my country are people who mixed headache medicine and soda. They didn't survive a day after that.
- Please describe what sort of headache medicine: Aspirin (fairly safe) or Heroin (excessive doses can cause breathing failure)?
- Please describe what sort of soda: Carbonated water (very safe) or Sodium Hydroxide (drain cleaner=deadly)?
Note that some forms of "dissolving" aspirin produce bubbles when dropped into water. These slightly carbonate the water, all by themselves...
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Or is this the old "aspirin and cola" myth?
https://www.snopes.com/fact-check/painkiller-combination/
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It's not just my mother's view, the school curriculum in my country actually teaches students that carrots are good for our eyes.
So what?
If your eyes have a problem, go to the doctor.
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mixing two different things before being put in the mouth can be fatal. The most popular cases in my country are people who mixed headache medicine and soda. They didn't survive a day after that.
- Please describe what sort of headache medicine: Aspirin (fairly safe) or Heroin (excessive doses can cause breathing failure)?
- Please describe what sort of soda: Carbonated water (very safe) or Sodium Hydroxide (drain cleaner)?
Note that some forms of "dissolving" aspirin produce bubbles when dropped into water. These slightly carbonate the water, all by themselves...
I don't know the exact contents, but the headache medicine is called "Bodrex" and the soda is "Sprite" (Coca Cola's cousin).
It's not just my mother's view, the school curriculum in my country actually teaches students that carrots are good for our eyes.
So what?
If your eyes have a problem, go to the doctor.
Just for your info, I was the one who made a thread about cataract and I have undergone the surgery which means I already went to the doctor. However, my right eye still has minus (I don't know how to say it in English) more than 3 despite the cataract is already gone. When I went to buy my eyeglasses, the doctors said that the difference between both lenses shouldn't exceed 3 so they only gave me the –3 right lenses in my eyeglasses. That's why I want to know how to reduce the minus of my right eye to be at least 3 so that I can see normally with my glasses on.
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Are you shortsighted?
However, my right eye still has minus (I don't know how to say it in English) more than 3 despite the cataract is already gone.
Is the word "dioptres"?
Carrot juice won't help with that.
It can be useful for people who are deficient in vitamin A. That deficiency can cause eye problems.
But if you eat a normal diet you probably get plenty of vitamin A so there's no point in drinking carrot juice (unless you happen to like it as a drink)
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Are you shortsighted?
However, my right eye still has minus (I don't know how to say it in English) more than 3 despite the cataract is already gone.
Is the word "dioptres"?
Yes, probably that's the word. So, what should I consume to reduce the "minus"?
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more than 3 (diopters) despite the cataract is already gone.
I understand that they often try to install a fixed focus lens when you have cataracts removed.
This means that you would need glasses for distance and/or reading.
I assume that they would choose a fixed focus lens that was not too different from your other eye?
I don't think you can eat anything to change focus.
But you can do some exercises to help eyes focus, and to correct for dominant eyes.
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So, what should I consume to reduce the "minus"?
Food or drugs to correct short sightedness (or long) just isn't an option. How could carrots change the shape or size of your eye?
Eyeglasses or contact lenses will do it.
As I sit here, with nearly minus 10 dioptre focussing defects in both eyes, it doesn't trouble me a bit.
I have glasses on and I can see fine.
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Correction the airborne Radar fitted to fighter aircraft was not micro wave but VHF they looked like hedgehogs !
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There is a popular belief that Coke can be used as virginal douche as a post coital contraceptive and that girls will retain a partly used bottle for this purpose although more effective medications are available
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When I was a child before the war I was puzzled why cough mixture caused me to have difficulty focusing when I read, I now know that what are now considered dangerous narcotics were then included in cough mixtures and caused dilation of the pupils
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It is standard practice in cataract surgery to fit one "normal to long" and one "short sight" lens, so if necessary you can drive or read without spectacles, then prescribe two pairs of asymmetric specs for general middle- to -long distance vision and closeup/reading work.
Having worn specs all my life, I opted for two short-sight lenses and I wear varifocal specs all day, but it's nice to read in bed or do close work without glasses from time to time.
The wartime "carrot" myth not only protected radar but also encouraged civilians to grow vegetables, carrots being particularly useful. Carotene is indeed involved in night vision, but a normal diet provides all you need.
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the airborne Radar fitted to fighter aircraft was not micro wave but VHF they looked like hedgehogs !
This is true of the early versions of airborne radar.
In 1940, University of Birmingham invented a multi-cavity magnetron operating at 10cm wavelength. This was small enough to fit the magnetron and antenna in a fighter plane with no external antennas.
Hiding the existence of this invention was essential. Fighters were instructed to never fly south of the English Channel; if they were shot down over land, the magnetron might survive the impact in a recognisable state.
See: https://en.wikipedia.org/wiki/Cavity_magnetron
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I understand that they often try to install a fixed focus lens when you have cataracts removed.
This means that you would need glasses for distance and/or reading.
I assume that they would choose a fixed focus lens that was not too different from your other eye?
I don't think you can eat anything to change focus.
But you can do some exercises to help eyes focus, and to correct for dominant eyes.
What kind of exercise? Is it like EMDR?
The wartime "carrot" myth not only protected radar but also encouraged civilians to grow vegetables, carrots being particularly useful. Carotene is indeed involved in night vision, but a normal diet provides all you need.
Well, if that's involved in night vision, probably I do need it. I still remember last year, June 22nd, when my friends and I got lost in a mountain during the night and it was pitch-black darkness.
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Unless you are living on boiled white rice, or have other health problems, you are likely to be getting enough vitamin A.
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I got lost in a mountain during the night and it was pitch-black darkness
On a moonless night, humans are pretty much blind. Combine that with a forest and/or clouds and you will be feeling your way.
That is not a problem with your vision, that is normal for humans.
- No amount of Vitamin A will fix it.
- Maybe inserting some owl genes might help? ;)
- Having glasses with a proper prescription will help on nights that aren't totally moonless...
To do better on a moonless night, you need a starlight scope (image intensifier) or night-vision goggles (infra-red vision).
https://en.wikipedia.org/wiki/Night-vision_device
What kind of exercise? Is it like EMDR?
EMDR appears to be a rather controversial treatment for Post-Traumatic Stress Disorder, and I was not thinking of that.
See: https://en.wikipedia.org/wiki/Eye_movement_desensitization_and_reprocessing
Was it mentioned that your cataract had caused a 'lazy eye" condition?
In this case, your eye will not see well, because your brain is not used to getting useful information from that eye.
Sometimes the good eye is covered on a part-time basis, to force the brain to start using the "lazy" eye.
https://en.wikipedia.org/wiki/Amblyopia#Treatment
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I got lost in a mountain during the night and it was pitch-black darkness
On a moonless night, humans are pretty much blind. Combine that with a forest and/or clouds and you will be feeling your way.
Well, that was indeed in the forest, before the rain (thus most likely cloudy), and moonless.
What kind of exercise? Is it like EMDR?
EMDR appears to be a rather controversial treatment for Post-Traumatic Stress Disorder, and I was not thinking of that.
See: https://en.wikipedia.org/wiki/Eye_movement_desensitization_and_reprocessing
I just knew about EMDR yesterday when talking about dealing with NPD with my friend. Because in our cases the NPD resulted in PTSD, he recommended this method. Then I said that I didn't dare to use it because of that cataract surgery and I don't want to risk it.
Was it mentioned that your cataract had caused a 'lazy eye" condition?
In this case, your eye will not see well, because your brain is not used to getting useful information from that eye.
Sometimes the good eye is covered on a part-time basis, to force the brain to start using the "lazy" eye.
https://en.wikipedia.org/wiki/Amblyopia#Treatment
So I should try to do some activities with only my lazy eye? I remember when I still didn't know that it was cataract, I tried to use my normal eye only to get better vision. When I opened the other one, though, it got worse.
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I know that Siemens built some radars using copies of multi cavity magnetrons that they had captured but they did not consider they gave much advantage over the Klystrons that their radars used (Germans are finicky they did not like the frequency instability of the magnetrons).
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So I should try to do some activities with only my lazy eye? I remember when I still didn't know that it was cataract, I tried to use my normal eye only to get better vision. When I opened the other one, though, it got worse.
Best thing to do is to relax, keep taking whatever medication was prescribed to prevent post-operative infection, and let your brain do its job of optimising the image it constructs from whatever information it gets from your eyes. It can take days or weeks to adjust, but it will eventually click together. There were several experiments conducted in the 1950s where people wore inverting spectacles, and after a few days their brains had flipped the images to coordinate with their hands and feet. People adjust to bifocal or even trifocal spectacles very quickly, but smooth varifocals are even better.
Interestingly , varifocal lens implants are prohibited for pilots because they tend to defocus at night, but specs with big "aviator" lenses work very well after cataract.