Cheap Sunglasses vs. Expensive Sunglasses

There is nothing to expect from cheap sunglasses other than poor quality. 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. What people don't know is that cheap eyewear could cause a lot of damage to the eyes. The pupil dilates because of the dark lenses, if there are no anti-UV protective features, then the ultraviolets and the infrareds become very dangerous for the eye. 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. This is often caused by plastic lenses that have faulty dioptric values which have not been established by medical prescription. A further criterion to appreciate the quality of the best sunglasses is by comfort and face match. 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 lens color influence a classification of the best sunglasses? Well, there are different opinions here. The capacity to absorb the colors of the visible spectrum and the reduction of the light intensity vary depending on 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. Greenaffects the perception of blue, red, orange and violet. For tropical locations, green lenses make the best sunglasses, plus, this color has a very relaxing effect too.

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 are among the most advanced of items because they protect the sides of the eyes too against the impact of the ultraviolets. Consequently, the properties of the lenses and the eye protection should justify a high price, and not fanciful frames.

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