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#33216 12/18/02 07:07 AM
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I wrote an article on eyesight and performance vision training for Girevik Magazine. It is a free online strength training magazine. We mostly cover Russian kettlebell lifting, but we occasionally venture into other human performance related topics, such as eyesight.
The article is called "Out of Sight" by Tyler Hass, it is in the articles section in the current issue. I mention Photoreading in the article, as well as a few other training methods.
Enjoy. www.girevikmagazine.com






#33217 12/18/02 03:42 PM
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I read a fair bit more than the sight article. I'm now quite curious about this training technique, and really enjoyed the cheetah analogy. That's definitely something to think about and look into.

I have a couple of comments about the sight article. I'm not a physiological expert on vision but some of my knowledge and understanding differs from the that in the article.

First the basic physiology is very good, and the concept diffence between image formation and vision are well presented.

I don't believe that cones are connected to only a single neuron.

I disagree with the statement "Essentially, we have two distinctly different vision systems that perform different functions". I feel that the separation is result of people trying to understand vision and as often happens create categories. In reality things usually exist in a range of states. My objection is really with the word distinct.

You talk about the high resolution of the macula and the poor resolution of the extreme peripheral vision. The receptor density does change, but not as dramatically as I had thought before checking some references. Visual acuity will be influenced by rod/cone density, as well neural connectivity, and utilization by the brain. I feel that an overly poor acuity would be attributed to none macula vision, based on the text and illustrations in the article.

I like your Bates, Samuri and PR references. I didn't know that people had followed on Bates' work.

Thanks for the link.

Iam2

French scientist.









#33218 12/18/02 07:59 PM
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Iam2,
Overly poor visual acuity can be a result of what you described below, but also due to the shape of the cornea. If it is not shaped right, you will not be able to focus properly, hence the need for glasses.
When I referred to the 1:1 ratio for cones and the multiple:1 ratio for rods, I was referring to the bipolar cells. However, many different types of bipolar cells exist, so it is not quite as simple as I presented it. However, for the purpose of my article and a few other references I have seen, this is adequate because it shows why central vision has greater acuity. It would have taken too much time to have covered ten different types of bipolar cells, horizontal cells, etc.
So yes, simplications were made, but most of the material I see on vision does distinguish between two vision systems. Some call them day and night vision, others refer to conscioius and subconscious, rod and cone, etc.
Thanks for your comments. I'll probably go on to study this further in neurophysiology classes.






#33219 12/18/02 10:17 PM
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Great article. What experience do you have with photoreading? Have you tried nightwalking? Hmm maybe I'll attempt it myself tonight...






#33220 12/18/02 11:02 PM
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Astrowill, I've been Photoreading for about a year, although I haven't really practiced it enough yet to get good at it. I am taking some time off from school, so perhaps I will work on it during my break.
I have not tried Nightwalking yet, but my Kali instructor has and he enjoyed the experience.
Thanks for the compliment on my article.






#33221 12/19/02 01:09 PM
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A little input about eyesight.

In 1997 my eyesight was -3 and -2.25, + the cornea was "crooked"

After eyeexercises (yoga + + ) and practicing relaxing the eyemuscles, my eyesight is now -1.75 and -1.25 and still improving.

Have a great day!

Laughing-heart







#33222 12/19/02 01:11 PM
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Oh. And the cornea is back to their normal shape!On both eyes.







#33223 12/19/02 01:28 PM
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Laughing Heart, and anyone else that has information. I've reached that age when eye-sight starts to go. I find that I can focus on objects that are less than 8 to 6 inches away (fatigue dependent).

I would like to know about eye exercise, relaxation techniques, whatever, that will help restore my old visual capabilities. I've read the Bates book, but have seen nothing else on this.

Thank you,

Iam2






#33224 12/19/02 02:08 PM
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My first experience was while I took a weekend course in Silva method. http://64.71.179.145/sub/subpages/programs/pro.html ( this was in Norway, though.)

When the course was over,one of the biproducts was that my eyesight had improved. They have a relaxationtape I used later, but I do not know if they sell it to other than graduates.


2.I also encountered eye-exercises within Hatha- yoga. They have books.

3. I talked to Asian kids who did similar eyeexercises every day at school. Less glasses in class.

***
I have focused on this every now and then when I get the inspiration.

I can send you an e-mail with exercises, but give me some time to formulate them in English.

But one of the main points are to change your focus back and forth between (very) far and near for a couple of minutes. Relax. And then round and around. Both directions.

And relax by rubbing the palm of your hands together untill they are warm and then put them over your closed eyes and *feel* that your eyes are relaxing and getting better.

I used to have 2 pair of glasses; one for the good days and one for the tired days. two different strenghts. That way I became more conscious about the muscles in my eyes.

It works!
Good Luck!


Laughing-heart

[This message has been edited by laughing-heart (edited December 19, 2002).]






#33225 12/19/02 02:53 PM
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Thank you. I would like that information.

Most of the exercises I've know have look to have been designed for the near-sighted. My developing problem is far-sightedness (can't see close). I want to blame this computer monitor, and not my age.

Thanks again,
Iam2






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