This is the best solution for people who have poor eyesight and are required to wear prescription lenses throughout the day. Since these lenses change their color when exposed to sunlight, you can wear them in the sun as well as indoors. These lenses also protect your eyes from the harsh UV rays.
Therefore, instead of carrying two different pairs of lenses, one for indoors and the other for outdoors, it is more convenient that you use only one pair of lenses. This will also be pocket friendly as we are all aware how expensive these daily needs commodities are. Just like any other normal lens, transition lenses also come in different designs.
They are available in bifocals, multifocal, and high-index lenses. Therefore, irrespective of what type of lenses you need, you will be able to get the lenses in the market easily. You might think that transition lenses are available in only a single color, however, this is not the case. The specialists were aware that every person has different requirements and preferences when it comes to the color and shade of their sunglasses.
This is why they developed these transition lenses in such a manner that they are available in multiple shades which makes it easy for the customers to choose from without having to make any compromise on their preferences. However, apart from this, there are certain cons to these lenses as well. For example, the molecules in these lenses get triggered by the UV rays, but also by the temperature.
Therefore, the rate of changing color would vary depending on the weather. Moreover, the transition does not happen instantly, it may take a few minutes for the color to change.