Photochromic lenses: a practical and modern solution
Photochromic lenses are the ideal solution for those who want constant eye protection, in any light condition. One of the most popular innovations in the world of optics, these are special lenses that help the eyes adapt to the light, darkening and lightening as environments change. Let’s see specifically how they work.
PHOTOCHROMIC LENSES TO SEE EVERY INTENSITY OF LIGHT
Defined as “smart” lenses as they lighten or darken depending on the various lighting conditions, photochromic lenses are particular types of ophthalmic lenses in which the intensity of the color adapts to the intensity of the light in the environment. These lenses are based on the chemical reaction of certain photoactive molecules that react quickly to changes in brightness. When light changes, particularly UV rays, the molecules begin a transformation process that results in the darkening and brightening of the lens. For example, in a closed room, photochromic lenses appear transparent like a classic pair of eyeglasses, outdoors, under sunlight, the lenses change color tone, ensuring maximum protection. The photochromic lenses on the market boast different colors: from the classic brown and gray colors, up to more particular shades, such as green; They also fit all frames. without neglecting the importance of a clear and relaxed vision.
ADVANTAGES OF PHOTOCHROMIC LENSES
These lenses offer important protection in all light conditions, as they cut the harmful rays of ultraviolet, allowing comfortable vision in any situation, without having to constantly switch between sunglasses and prescription glasses, from an open to a closed place. Available in different types (monofocal, bifocal, progressive) and colors, the advantage of these lenses is therefore that they are able to adapt gradually to the continuous variations in light intensity. Thanks to photochromic technology, in fact, the lenses are initially clear and completely transparent at the start, darkening in the presence of UV rays, adapting to continuous changes in brightness and ensuring clear vision in any situation. The more intense the solar radiation, the more intense their colouring will be.
Photochromic lenses not only allow you to see well in all light conditions, but also reduce tiredness and eye fatigue and block 100% of UVA/UVB rays. Specially created for maximum outdoor absorption, these lenses are a great choice for those who spend most of the day outdoors, such as sportsmen and nature lovers.
DISADVANTAGES OF PHOTOCHROMIC LENSES
However, you should know that there are also some disadvantages. In winter, some photochromic lenses react quite intensely to the cold, darkening. While if you are driving, you must take into account that the windshield absorbs UV rays. It may be that the lenses do not color enough. The same applies in the case of high temperatures. In fact, the latter reduce the photochromic effect: the transition process to the light state is a thermal process, and this means that if the temperature is higher, the effect of the lens will be lower.
PHOTOCHROMIC LENSES: LIGHT UNDER CONTROL
We can say with certainty that these lenses can prove to be a really valid solution, especially for those who work in brightly lit places, for those who are forced to move from closed to outdoor environments numerous times a day and for those with particularly sensitive eyes. In practice, they reduce the discomfort caused by bright light and, when the lenses are carefully prescribed, they can help to correct visual defects at the same time. In short, thanks to photochromic lenses, the eyes will always be well protected and optimally safeguarded.
