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Changing Retinal Defocus intensity for PROGRESS.Ocular stretching positions: how long time?

FAQ n. 24. Power Vision System - When I’m able to focus a text well, holding it with completely extended arms, does this mean that I’m supposed to change my plus lenses? For how long a time should each stretching position be maintained while carrying out the exercise of stretching (in seconds)?

a. Starting from focusing: I put my glasses on (I always wear undercorrection, when studying or working) and then I put a +1 additional lens over my correcting lenses, move the book as far away in order for the letters to be slightly blurred, carry out CRB movements, stretching out my eyes and eyebrows as much as I can and have the letters come into focus—even if not perfectly. Am I right? Then, I take off the +1 additional lens while blinking, wait for some seconds, put the +1 additional lens back, move the text away until the letters are slightly blurred, carry out the CRB movements and so on. Am I carrying it out correctly?

b. Am I supposed to keep my gaze fixed on certain details or I can space it over the page?

c. Should I change the plus additional lenses once I’m able to focus the text well, holding it in completely extended hands?

d. Passing to static gymnastic: I take off my glasses, because I can’t focus anything well if I wear my glasses, and carry out the exercises at extreme positions of the visual field; one of my eyes views through the lens, but the other doesn’t.

e. When fixing on a point and turning my head till maximum ocular tension (for example, toward the left, as much as possible), at a certain point my right eye vision is completely, or partially, covered with my nose: is it okay, or too much?

f. For how long am I supposed to keep in one stretching position(as well as all the positions in the exercises of stretching), in seconds?

- Answers David De Angelis

I’m pleased and willing to answer all your questions:

a. The sequence you are carrying out is correct and there’s no need to take off the additional lenses (+1 in your case, but dioptric power of the additional lenses would be +2, +3, +4, at a higher stage in practicing this technique, or if you were treating hyperopia, the lenses would be negative). On the other hand, if your myopia were low, you could train with training lenses even without putting them over your ordinary, correcting glasses, wearing only training lenses. The explanation for the latter is that your myopia is low (about 2 diopters per eye), the fogging(driven for reading the text) is “reasonable,” even without your present dioptric power glasses.

As reasonable, I mean the method or technique that lets you create slight fogging and focus on the text without holding it 3–4 inches from your nose (as you should do if your myopia were high and if you immediately trained without your ordinary lenses but with the opposite sign). As for high myopia, it is necessary to put the training lenses over the ordinary ones; then, as your focusing is improving, you take off your ordinary lenses and/or even increase the dioptric power of your training lenses. The adaptation is inevitable, otherwise we wouldn’t be able to explain gradual sight worsening.

You don’t need to take off your training glasses after CRB movements.

b. The gaze can move all over the paper, but if you want to read the text you are training with, you must “point” the line and the letters you would like to focus on, as when reading normally.

c. Yes, but it’s a matter of convenience. When you reach the stage of training with reading, wearing additional +1 lenses, and holding the text in completely extended arms, you must change the lenses and use higher dioptric power training ones, simply because, otherwise, it would be hard to read the text at a further distance.

The simplest thing to do is to increase the training load for your eyes, putting higher dioptric power training lenses over the others. Now you can see that the length of your completely extended arms that you take as a limit for the present training lenses is a matter of convenience and, therefore, the sign to change them.

Keep in mind: In the case of hyperopia, the text should be brought nearer gradually—and the training lenses could be changed for higher dioptric power ones (passing from –1 to –2 and then to –3, concerning your refractive error). When you bring the text too close to your nose, there’s no slight blur:

then, since the load doesn’t exist anymore (because your eye has gotten used to training lenses, improving its focusing ability), it will be necessary to rebuild the load with higher dioptric power lenses (the training ones).

d. Yes, you must take off your glasses when carrying out the exercises of ocular stretching; otherwise these glasses would hinder your peripheral fusion and pointing. At this early stage, you must maintain ocular fusion (opposite to splitting). This is the aim of these exercises—to restore the symmetry (flexibility/strength ratio) of extrinsic ocular muscles. In short, maintain the fusion of the fixed point at the edges of the visual field.

e. Your nose shouldn’t jeopardize your training, and you must stop your glance before one of your eyes becomes covered with your nose; otherwise you can’t tell whether your eyes are in the state of fusion or splitting.

f. I need to explain some concepts on contraction intensity and muscular work. As for muscular work, the intensity is the relationship between quantity of load that is moved in a time unit. In the case of isometric contractions (when the muscle is contracting against a steady resistance), and in our case, it is impossible to give you precise suggestions on the factor of contraction intensity.

How can we avoid this merely theoretical factor? How can we be sure that our eyes are always subjected to the load that is suitable to create muscular adaptation? The answer is in perceiving the level of muscular work you are carrying out. Muscular work (the intensity of contraction) depends on your willingness: you must fix at the extreme point of your visual field as if you wanted to overcome that very range of movement.

The time? 10 seconds or 1 minute—it depends on how much muscular work you would like to carry out. The greater the intensity, the more you bring about muscular recovery—strength increase and better ocular muscles’ functioning. Don’t worry if you didn’t understand some of these technical explanations. You aren’t supposed to understand cardiovascular circulation functioning in order to make your heart work. All that you are supposed to do is to use and practice the technique.

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