Transition eyeglasses, as a new fashioned eyewears, go over big among eyeglass wearers. People using transition eyeglasses increase at a double-digit speed in each countries all over the world. Nevertheless, their minds are filled with questions like what transition eyeglasses are and what differences there are between transition eyeglasses and sunglasses. Here below are some explanations concerned.
Are transition eyeglasses change their colors according to the intensity of sunlight?
This is a common misconception for most people. As a matter of fact, it is the ultraviolet radiation that determines the change in color. This is why even when we wear them in a cloudy day, the lenses would get darker, for once ultraviolet radiation shine upon, photosensitive molecules within the lenses would take chemical reaction, as a result of which, with the reset of molecules, lenses turn to black ones. In addition, the color of lenses are directly related to temperature outside. All things being equal, with the increase of temperature, the color of lenses would darken, or vice versa.
Would
transition eyeglasses provide a clear vision indoors?
Transition lenses of super high quality bear the same light transmittance with ordinary lenses. The figures show that coated transition lenses are equipped with light transmittance of 87% while ordinary ones are 89%. Therefore, you are guaranteed to see objects indoors clearly as long as you buy well qualified products.
Why should we choose transition eyeglasses?
Due to the fact transition eyeglasses are workable both outdoors and indoors, they serve more than you are being paid to, because you do not have to prepare two pairs of eyeglasses, one for providing clear vision and the other for block sunlight. Benefits transition eyeglasses would bring to customers include: be quick in change in color; be good for eye health; be capable to block UVA and UVB and so on so forth.
Who are the candidates for transition eyeglasses?
Every one should be a transition eyeglass person, for both the technology and performance allows a perfect combination with lenses of different refractive indexes and materials. Besides, children need transition lenses more, because they would embark on more outdoor activities than adults do, so they are more probably to get hurt from UV. For some people with eye diseases, transition eyeglasses play an important role in protecting their eyes. They bear extraordinary ability to keep off UV and other harmful rays.
