What are the best sunglasses?
In a country like ours, with 9 months of sun a year, it makes sense to look for a good sunglass that gives our eyes a rest from the bright light. But what specifications should we look for?
Necessary Condition A)It should have absorbent material, i.e. it should cut harmful UV radiation. Here it is worth noting that the material can be absorbent even if the lens is white, since the role of the color is to rest us only, and not to protect. By extension, a helium of dubious origin of an unknown brand may give us rest due to its dark color, but due to the lack of absorbent material, it may not cut theharmful UV radiation. In this tthe dangerous situation not only are we not protected, but due to the dilation of the pupils from the rest provided by the potentially dark color of the fake sun, more harmful UV passes through our eyes than if we were not wearing any sun(when we don't wear our pupil partially closes, due to the discomfort from sunlight).Necessary Condition B)It should be of a coloring that will give us rest, and these are usually medium-dark tints and cypress. It would be good to avoid brown, because it has been observed that many eyes, especially light-colored ones, get tired due to the nature of the color brown (it contains red), which excessively increases the contrast.
Optional Condition C)Be polarizing. Polarization limits the light energy that passes to our eyes, which comes from the direct vertical reflection of the sun on a large open surface (sea, snow, road). It is mainly recommended for those who work in an open environment (sea, ski resorts, professional drivers on highways, etc.).Here we should note that if the lens is intentionally polarized but without absorbent material, it does rest, but due to the opening of the pupil from the comfort offered by the polarization, more time passesharmful ultraviolet radiation in our eyes, from not wearing any sunscreen. This is also the worst case scenario for abusing our eyes.
