Photochromic lenses, also known as transition lenses, are lenses that change color depending on the level of ambient light. These lenses are designed to darken when exposed to bright light, such as sunlight, and then lighten when the light level decreases, such as when you move indoors.
The technology behind photochromic lenses involves special chemicals that are embedded within the lens material. These chemicals react to UV light by causing the lens to darken. When UV light is no longer present, such as when you go inside or when the sun sets, the chemicals stop reacting and the lens gradually lightens back to its clear state.
One of the main benefits of photochromic glasses is that they eliminate the need to switch between prescription glasses and sunglasses when moving from indoors to outdoors or vice versa. This is particularly convenient for people who spend a lot of time outdoors, as they can avoid the hassle of carrying around multiple pairs of glasses or constantly switching between them.
Another advantage of photochromic glasses is that they provide 100% UV protection, which helps to reduce the risk of eye damage from prolonged exposure to the sun’s rays. In addition, because the lenses automatically adjust to changing light conditions, they can help to reduce eye strain and fatigue, particularly in situations where you are frequently moving between bright sunlight and darker environments.
Photochromic glasses are available in a wide range of lens materials, including polycarbonate and high-index lenses, as well as a variety of lens designs, such as single vision, bifocal, and progressive lenses. They are also available in a range of frame styles and colors, making it easy to find a pair that suits your personal taste and lifestyle.
Overall, if you’re someone who spends a lot of time outdoors or frequently moves between bright sunlight and darker environments, photochromic glasses can be a convenient and practical solution. They offer 100% UV protection, help reduce eye strain and fatigue, and eliminate the need for multiple pairs of glasses.