Stereograms for the eyes - a way to have fun and at the same time improve your vision

All of you for certain at least once saw stereoprintines for the eyes on the back of school notebooks. Someone could see a 3D image hidden in them right away, someone could not see the 3D image, no matter how hard he tried. In fact, only 1% of people on earth are not able to view the three-dimensional image. The rest just need an eye training.

What are the stereotypes for the eyes?

Stereograms, or else SIRDS (Single Image Random Dot Stereograms), arose at the junction of several sciences. This is mainly optics, psychology, physiology and some others.

Most people see the objects around them with two eyes. They look at the subject with each eye individually, and then the brain makes two images of each eye a one-dimensional image.

If we imagine that our eyes emit two rays, at the moment when we are looking somewhere, at the point where our eyes are directed, the rays will intersect. The farther away from us the object we are looking at, the rays intersect at a sharper angle. Depending on the angle at which the sight is directed, the brain draws a conclusion about the distance to the object.

What happens if we look at an image with repetitive figures that are virtually indistinguishable? The brain in this case will combine the corners incorrectly, and the person will see what actually is not in the picture. The most interesting is that a non-existent image will turn out not flat, but volumetric.

Why should we look at the stereotypes for the eyes?

Benefits for eyesight

It turns out that watching stereoscopic images is not just entertainment. Such an occupation, according to ophthalmologists, benefits our vision.

Namely:

1. The accommodation of the eyes is improving. This is due to the alternate tension, and then the relaxation of the eye muscle. In turn, such actions improve vision, make it more clear.
2. The circulation of blood in the eye muscles intensifies. This protects your eyes from low or high blood pressure.
3. Brain activity is being trained. Increases concentration and attention. The speed of brain reactions increases.
4. Skills of stereoscopic vision develop.

It is important to blink regularly, examining stereokartinki for the eyes. Complex stereo images, the viewing of which requires a long time, cause the draining of the cornea in the eye, which can lead, in turn, to redness, cause pain in the eyes. When a person blinks, tear ducts moisturizing the eye are irritated, and draining the cornea does not occur.

According to the foregoing, it can be concluded that large stereotypes for training the eyes on the whole screen are less useful for vision than for stereoscopic images of conventional sizes.

Pros of stereoscopic view

To survive in the wild, man was given by nature a lot of various means. It is thinking, memory, imagination and stereoscopic vision. This vision allows a person to accurately estimate the distance to the surrounding objects, determine the shape and volume of the object, located at a considerable distance from us.

Stereoscopic vision is extremely important for people of such professions as a basketball player, football player, driver, designer, surgeon, pilot, dentist, architect, and many others.

Thanks to the volume vision, we can easily thread a needle, catch a ball, pour water into a glass, drive a car, step over obstacles, shake hands with friends and look at stereoscopic drawings.

How to view stereo images

It's best to view images on paper, not from the computer screen. Therefore, if possible, print out the picture. You do not need to use a color printer. A picture printed on a black and white printer should be viewed as well as a color one.

Now we bring the image to the nose, look blurry, as if in the distance, so that the focus of vision was beyond the image.

Slowly move the drawing away from the nose. At the same time, keep looking not at the picture, but at a distance. If you get lost and distracted - start over.

The image will become volumetric about the distance of the arm bent at the elbow.

When you see a clear image in the foreground, and everything else becomes a background, the stereo effect is achieved.

The most important thing in considering stereo images is the ability to keep the focus behind the image for a long time.

Exercises for training volumetric vision

Exercise number 1 with a mirror.

It is necessary to stand in front of the mirror and translate the look one by one to your reflection, then to the surface of the mirror itself. Repeat for 2-3 minutes.

The essence of this exercise is as follows: your reflection is the place where you need to concentrate your view while viewing stereo images, and the surface of the mirror is the stereo image itself, the place in which the voluminous picture will appear.

Exercise number 2.

Zoom in on the stereo image to your eyes as close as you can. Wait until the view defocuses by itself.

Slowly move the image away from the face until the 3D image appears.

Exercise number 3.

An ordinary person is accustomed to always look with both eyes at one point. In this exercise, you should try to look with each eye at different objects on the stereo. Exercise of this exercise requires training, but eventually it is mastered by everyone.

Conclusion

Looking at stereokartinki for eyes is not only a way to spend interesting time, but also an opportunity to improve your vision, increase its clarity and normalize eye pressure. To make this lesson useful, remember to regularly blink to properly moisturize your eyes. Also consider paper, printed images, rather than those on the monitor screen.