How to choose your sun glasses
Sun glasses are an important accessory for summer outfit. They are found on the list of the newest trends in accessories at the current season. The only difficulty that you will have is in choosing the right model.
Possibilities are numerous and that’s why it is good that before you start to buy sunglasses, to document about the little variations that you have, to choice the best for you. The most important factor in choosing sunglasses is the protection of UV filter.
Sunglasses: what material should be made their lenses?
Regarding the material constituting the lens, you can choose between three alternatives: polycarbonate - very durable, CR-39 - a durable plastic, which is often used in production of solar protection lenses, glass - is resistance, but the lenses are much heavier and cumbersome compared with the other two materials.
Sunglasses with lenses that resist against scratches
It is better to opt for the more resistant lenses, especially to stitches. Remember, also, that plastic lenses are more at risk of a scratch than glass. Also recommended are lenses with anti-reflex coating.
Frames for sunglasses
Regarding to material of the frames are no restrictions: plastic, aluminum, titanium - you can choose what you want, as long as you feel comfortable. Those who protect the best are glasses with large frames.
Sunglasses, lenses color
When you choose colored lenses, you must make an informed choice; the color is intended to absorb light, which filters:
* Gray reduces shine, but not distorts natural nuances
* Brown and amber colors reduce the brightness, but distort colors more than if you choose gray lenses
* Yellow lenses improve on the one hand, visual acuity, but on the other hand, distort the natural colors
* Green color reduce the brightness and creates a good contrast between objects, not “aggressive” for eye
* Sandy lenses are recommended for the situation you want to go to a picnic or to the mountain, for it creates an excellent contrast in relation to green and blue nuance.
