More issues on lenses

Color of lenses in glasses are especially important

If you put on glasses with color lenses, and the world around has considerably changed color, know: you have a fake on your nose. Brand lenses keep all colors natural, only slightly changing a shade.

Multi-colored lenses of glasses can create problems for people for who is important exact perception of color, for example for drivers.

Infringement of habitual color scale for the benefit of any one color appreciably disseminates attention; the person in color glasses becomes tired much faster.

As the most optimum are considered grey (from a light tint, up to deep, almost black) and brown.

Thus grey provides real recognition, brown - excellent contrast, but green becomes grinner, and bright colors - are paler.

For drivers frequently recommend yellow color (at soft illumination). This filter reduces eyes tension, improves perception of surrounding space on depth (the risk of accident is susceptibility more precisely estimated).

Orange it is intended for reduction in blinding action of light during the night.

Green provides a decent level of contrast in conditions of insufficient illumination and protects from the bright sun.

Avoid glasses (https://www.safetyglassesusa.com/), in which the world seems to you (in a literal sense) blue and violet.

In such glasses you risk to ruin yours eyesight literally during one summer. The matter is that these colors negatively impact on our eyes. Prevalence of a blue-violet part of a spectrum tin rate of thinking and a motility of the person.

At long work in front of computer - there are headaches, weariness, and irritability. Prevalence dark-blue - strengthens effect of dispersion of light (it causes danger of patches of light from headlights of counter automobiles).

The form of lenses

The flexure of a lens also matters, but the perception already depends on specific features of eyes: say, you well feel OK with flat lenses, and with convex – you experience some discomfort.

It can be connected to the latent problems. For example, with infringement of binocular sight (two eyes). Advice such: if feel though the slightest inconvenience, better refuse this model of glasses.

Different coverings

Covering plays not the last role in forming image through the glasses. Mainly, glasses are produced with regular protecting lens of variable colors. But also you can meet polarizing cover, which decreases blinding glares. To clear up does your glasses have polarizing cover you can in glasses shop by means of special screen or patch. It is necessary to look at them without glasses, and then - in them. If any image unnoticeable to the naked eye will appear on the screen, then your lenses are with polarization.Clarifying (antiglare) the covering - removes glares of light and « parasitic images » on a back surface of a lens. « parasitic images » you can suddenly see inside the glasses in the form of reflection of objects which are behind you, or even your own eye. « Parasitic images » worsen clearness of vision and can cause serious problems, especially during night automobile driving.