Cheap Sunglasses vs. Expensive Sunglasses
Poor quality, that is what comes with cheap sunglasses. Low standards are not a problem with reputed brand names because their best sunglasses represent a continuation of tradition and the preservation of good reputation. Lots of harm can be caused to the eye if low quality sunglasses are used. Dark lenses cause a dilation of the pupil, thus the entrance gate for the infrareds and ultraviolets will be a lot higher in the absence of UV protection features. Sight impairment, crystalline dysfunctions and cataract could be among the severest consequences of the exposure to radiations.
Another reason why you should always try to buy the best sunglasses possible is image distortion. The best sunglasses will not pose problems in terms of dioptric values although a doctor’s opinion may be needed. Face match and comfort make other criteria for appreciating the features of the best sunglasses. If you try more pairs on, you’ll see that there is a big difference between matching and not-matching glasses, as they have to fit well on the face. Then, besides UV protection, the best sunglasses also reduce the glare by the anti-polarizing coating that covers the lenses.
Can we select the best sunglasses by color too? Well, opinions differ here. The capacity to reduce light intensity and absorb the colors of the visible spectrum varies with the color. Not anyone can wear dark lenses for instance because they can reduce visibility: this is the reason why drivers, pilots and many other wearers prefer gray. Green lenses have the highest efficiency in absorbing IR and UV radiation but they make certain colors hard to distinguish. Greeninterferes with the perception of blue, red, orange and violet. Nevertheless, when you are on vacation in some exotic location, green lenses make the best sunglasses, not to mention the relaxing effect of the color.
Warm and cold environments are perfect for both cold and warm environments as well, and they have a good capacity to absorb radiations. Yellow lenses on the other hand are not useful against intense brightness but are great for foggy weather or driving at sunset. Protection and comfort, these is what the best sunglasses should provide. Wraparounds have superior features too because they prevent the UV rays to affect vision on the sides of the eyes. Consequently, the properties of the lenses and the eye protection should justify a high price, and not fanciful frames.
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