NEO Shoes New Zealand

There are three pinhole lenses and NEO Shoes New Zealand currently on the market: pyramidal, conical and fine holes. There is an experiment, very simple and accessible to everyone, that allows us to understand the operation of pinhole glasses: take a garment and bring it in front of the eyes, widening the textures of the fabric; the result should be a sharper image: this is the same mechanism as pinhole glasses.

They become a problem for those who have defects of refraction and it is precisely these that cause the typical blurred vision. These glasses, therefore, do not cure any illness, but simply limit themselves to eliminating the cause of the problem.

The pyramidal lenses are suitable for reading, watching television or staying in front of the computer screen. The glasses with the conical holes eliminate reflections and are suitable both for working and for going out in the open air. Finally, the lenses with fine holes have been designed for myopia of -5 diopters on.

It is customary for the Eskimos, for example, to make their own visual correctors with small holes, to protect their eyes from the excessive brightness of the snow, always present in their landscapes. This need arises from the fact that, when outdoors, the reflections of the sun’s rays on the snow represent such a nuisance that it is impossible to keep the eyes open; even returning to the igloos, for a few minutes it is difficult to distinguish colors and see clearly. Who knows how many times you have felt a similar sensation, albeit in a much less accentuated way.

There are different ways to build DIY pinhole glasses and NEO Shoes New Zealand, even if it is not at all simple, because you have to be very precise, so that they fully fulfill their task. Some simply use perforated cards, very comfortable to focus on what you can not see clearly.

Cut out foil sheets of a size slightly larger than the contour of the holes housing the lenses. Folding the sheets, wrap the openings (at the same time folding all the excess paper). Put the glasses on and try to identify, with greater precision, the exact points in which the pupils look at the moment they look forward. In those points, with the help of a needle or a pin, create a small hole for each lens.

Puncture the aluminum foil requires extreme precision, both because you need to be good at identifying the central point where the pupil directs its visual trajectory, and because you have to create a perfectly round hole, without irregularities on the edges. In the event that this operation is not carried out accurately, a deleterious result could be obtained, even risking to worsen one’s sight.

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