Those who wear eyeglasses know how walking outside when it’s bright and sunny can be a challenge. Many people bring both their glasses and sunglasses when heading out and switch between the two as needed. However, with photochromic lenses glasses, you don’t need to worry about this issue since they darken under the sun and go clear again when you’re in the shade. Photochromic lenses are also known as “transitional lenses” as they adapt themselves depending on the lighting conditions. These lenses get darkened when exposed to bright light, protecting our eyes from harmful UV rays.
What Are Photochromic Lenses?
Photochromic lenses are just like normal lenses but they automatically become dark when we move in the sunlight. Ultraviolet rays coming from the sun affect the molecules present in the photochromic lenses therefore, these lenses change their colors. These lenses get darker in bright lights. Photochromic lenses glasses are different from sunglasses. As we know, sunglasses have a set tint that protects our eyes from glares but they are not changeable whereas photochromic sunglasses easily adapt to the nature of the light present around them and change accordingly.
How Do Photochromic Lenses Work?
The coating on photochromic lenses is made up of trillions of tiny molecules of silver halide and chloride, which react to the ultraviolet radiation in sunlight. Once exposed, the molecules in photochromic lenses change structure and move, working to darken to absorb the light and protect your eyes from the sun's damaging rays. However, today, most photochromic lenses utilize proprietary dyes that go through chemical changes that darken the lenses under UV light exposure. Photochromic lenses glasses are available in nearly all lens materials and designs, including high-index lenses, bifocals, and progressive lenses.
Advantages of Photochromic Lenses
Photochromic lenses help in reducing eye strain and eye damage by blocking up to 100% harmful UVA/ UVB light. Also, exposure to sunlight and UV radiation for a long time has been associated with a high risk of cataracts later in life, so it’s a good idea to consider photochromic lenses to protect our eyes. In addition, photochromic lenses glasses are very convenient to carry as you do not need different glasses for different lighting conditions. Therefore, photochromic sunglasses are cost-effective for you to buy. Moreover, photochromic lenses are available in different shades, tints, and styles suitable for your taste.
Who Needs Photochromic Lenses?
Photochromic sunglasses can be worn throughout the day on the daily basis. They can be used just like normal eyeglasses. Photochromic lenses are beneficial to all and especially to those who continuously change from outdoors to indoors. Photochromic lenses glasses make driving safer and easier. When you’re operating your car, truck, or SUV, it’s important that your vision is clear and uncompromised. If you have a visual impairment such as myopia, hyperopia, or astigmatism, you’ll need corrective lenses to drive. With photochromic lenses, you get vision correction along with protection from the sun's dangerous UV rays all in one pair of glasses. However, photochromic sunglasses won’t help with night driving. Photochromic lenses only darken under the sun’s UV rays, so they won’t dim bright headlights or streetlights.
As for the photochromic lenses, this post from Koalaeye Optical has shown some information about photochromic lenses glasses. If you have any different ideas for photochromic sunglasses, share them in the comment zone. If you have any problems with glasses or sunglasses, please feel free to contact us via email at service@koalaeye.com and we will reply to you as soon as possible.
