Perforated glasses, or glasses with holes, according to manufacturers, are a simulator for correcting vision. It can correct both myopia and farsightedness. Manufacturers also promise improved vision for astigmatism and asthenopia (chronic eye fatigue).
Myopia (myopia) occurs in humans when the deformation of the eyeball occurs, in which light rays are focused not on the retina, but in front of it. The reason for this phenomenon is the weakening of the eye muscles that hold the apple. Hyperopia is a phenomenon in which the image of objects is formed behind the retina. Most often these are age-related changes. Astigmatism is a complex visual impairment in which visual acuity decreases both far and near.
Glasses for vision correction with holes are at first glance sunglasses, but instead of lenses they have plates with tiny holes. Manufacturers claim that this is a new development, created on the basis of the application of the laws of optical physics (refraction, defragmentation, interference of the light flux). For people who are not knowledgeable in physics and medicine, these phenomena look mysterious and not very clear. But nobody offers to go into details. The principle of operation of such glasses is based on the phenomenon of defragmentation of the object while increasing the depth of field, which is why the image focuses precisely on the retina, which improves vision. This phenomenon is also called the effect of the diaphragm ("peeping into the hole"). In addition, the effect on the eye muscles is reduced, which contributes to their relaxation.
Manufacturers promise that glasses with holes, if you strictly follow the instructions and use them for at least 30 minutes a day, can return 100% vision literally within a year. It is advised to start with 10 minutes. At first, a person experiences discomfort, but eventually gets used to it. With these glasses you can read, watch TV, work at the computer, do other work.
There is another opinion. Many experts believe that glasses with holes are a useless device. Since myopia is practically irreversible in itself, that is, without external intervention, you can’t get rid of it with one training, you can only stop the deterioration of vision. Hyperopia is easier to prevent by observing the visual regime and performing special exercises for the eyes. Astigmatism is most often a congenital defect in vision, with proper treatment, you can get rid of it, but myopia will still remain.
A study by American scientists who tested hole glasses made in the USA showed that this device is completely useless. It does not correct vision. In addition, as it turned out, this is not a modern development. Similar devices existed in the Middle Ages. But over time, the perforated plates were replaced with lenses, which is much more convenient, and there is more benefit from this.
So even if the glasses in the hole look very unusual, and seem to promise miraculous healing, it’s worth considering how rational this miracle is. Not everything that is presented as advanced technology in advertising is one of them.