June 3rd

Eye Exercises  ⁄  Weird Thing With My Vision


I would like to discuss something I noticed lately with you. I am not sharing it on you web page since I do not think there is a related article.

I guess you are aware of this trick: that even the ones having myopia can see clearly through a small hole. You can pierce a small hole on a piece of paper (diameter ~1 mm should do) or even with the top of your three first fingers (thumb + index + middle fingers) creating a small opening. Looking through this tiny hole, due to physics properties (refraction of light by lenses) the object you are looking to appears very clearly even though your glasses were taken off.That is why glasses with holes are sold (http://www.ny3d.org/pinhole_glasses.jpg), claiming those would help to relax your eyes, I don’t really know if that’s true and that is not my point 🙂

So:sometimes after doing the warm-up and training exercise to my muscles, I fix an object and stress these muscles a bit to increase my myopia. I do so during a short delay, in a dynamic way. It helps me to be more receptive to my extra-ocular muscles feelings and then having a better control over them. Then I experienced something weird: looking, through this tiny hole i made, and looking to your first visual target, I realized that acting on my muscles to increase my myopia would make the visual target still sharp, but smaller. As I relax them, the target gets to its original size. This effect is hard to describe, I think you will have to experience it by yourself. Its rendering is… just strange.

Anyway, when I looked to the target in a normal way (without the tiny hole) I have to tense my muscles a bit to get the same feeling, which leads to a blurrier vision.

Of course, a question naturally arises: Could I obtain this effect – but in the opposite way? Will the target appear bigger?? I tried and I am really able to make the target bigger! And still sharp as I am still checking by looking through this hole. But I have to admit making the target bigger is tricky. I need to focus on not tensing my muscles and even more, relaxing them. Moreover the sensation I get is something I have never experienced before. It is different from the feeling I get when I relax, different from when my muscles are tense, it is just… neutral. Again I cannot find my words.

I made few deductions, but please I would like you opinion on them. >I think that looking through this hole and playing with my muscles illustrate very well the fact that  extra-ocular muscles can make the shape of your eyes change. Or am I wrong and did I forget another parameter?

>If tensing these muscles makes the target appear smaller, aiming at making it bigger could help to have the muscles relaxed. Wrong?

>The question that has been bugging me for a while and is still bugging me in that case: how can I say if  I am, or not, acting on my ciliary muscles too, so there is a combination of extra-ocular and ciliary muscles?

Thank you.

Wishing you the best,



Alex, thank you for the very interesting observation. I consider this email important enough to post it on the blog. I hope, some visitors will describe the similar experience of voluntary setup of accommodation and a pinhole effect. Any ideas?


Dr. Arkadiy Davydov

7 Responses

  1. al:

    27.11.2013 at 11:07 #

    I have just started to see text on my mobile getting blurred. simple squinting makes the text clearer. come to think of it is it not what we do when we want to see something more clearly.
    i have no explanation for this but just to apreciate alex – he has observed while we are seeing.
    doc – only u can take this further so that we can do without the glasses.

  2. Bishrelt:

    27.12.2014 at 23:06 #

    Have you noticed the same effect with one eye only?

  3. Alex Myopic:

    27.01.2015 at 23:46 #

    The pinhole effect is due to depth of field

    I think that simply by moving the pinhole further away from the eye the target object appears smaller.

  4. Ranger:

    10.02.2015 at 04:46 #

    The Convergence and Divergence exercises are somewhat similar to the 3 Cups eye exercise I’ve tried in the past. I’m wondering if it’s a good idea to:

    1) move eyes up, down, diagonally, in a circle while doing Convergence and Divergence exercises?

    2) alternate between Convergence and Divergence every 5 seconds or so during the entire session?

    3) practice Convergence and Divergence exercises at different distances during the session?

    Thank you for your website. It is excellent!

  5. Doc:

    10.02.2015 at 10:56 #

    Ranger, thanks.

    1) yes, you can move your eyes while doing the Div/Con exercises.

    2) it depends on the eye exercise.

    3) no, one distance for both Div/Con exercises. But, you can practice the eye exercises at the distance of 0.66 meter with 2.5 Diopter under-corrected glasses or at the distance of 1 meter with 2.0 Diopter under-corrected glasses.

  6. SUB:

    26.07.2015 at 21:49 #

    I have myopia in both eyes.Left eye(-2.0 sph.) and right eye(-0.5 sph.).Due to which my right eye is dominating at distant vision.
    Could you please suggest some exercises in order to dissipate the domination and get 20/20 vision back.

    Thank you.
    Regards from India.

  7. Doc:

    27.07.2015 at 22:34 #

    SUB, I am going to upload some videos about switching to the domination of the weak eye

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