Photochromic What?
What Are Photochromic Lenses?
Development of Photochromic Lenses
Though they have gained popularity in recent years for their functionality and style, photochromic lenses have actually been around since the 1960s. However, it wasn’t until the 1990s that they became widely available. Today, there are many brands offering these lenses, and even photochromic contact lenses have been introduced.
How Do Photochromic Lenses Work?
When you wear photochromic lenses and go outside, they shift from clear to a darker shade, depending on the intensity of UV light. This is due to the photochromic dyes in the lenses, which undergo a chemical reaction when exposed to UV rays. The more UV exposure, the darker the lenses become.
Do Photochromic Lenses Block Blue Light?
While blue light blocking isn’t the main reason people buy photochromic lenses, they are effective at doing so. They block blue light from outdoor sources, such as the sun, as well as indoor sources, like computer screens and smartphones.
People primarily use photochromic lenses for two reasons:
- Protection from UV Light – Prolonged exposure to UV light can lead to eye conditions like cataracts, macular degeneration, and corneal damage. Photochromic lenses offer full UV protection in both their light and darkened states.
- Convenience – These lenses eliminate the need to switch between regular glasses and prescription sunglasses. They quickly adjust to changing light conditions, making them ideal for people who frequently move between indoor and outdoor environments.
Tips for Caring for Photochromic Lenses
Maintaining photochromic lenses is similar to caring for regular glasses, but since they are more delicate and expensive, extra care is recommended:
- Clean your lenses daily with liquid soap and water, using gentle motions to avoid scratching the surface.
- Avoid soaps with moisturizers or harsh chemicals that could affect the lens coating.
- Wash your hands before cleaning your glasses to prevent dirt or debris from scratching the lenses.
- Store your glasses in their case when not in use, especially in purses or bags, to prevent damage.
Head to our photochromic page to find the sunnies that suits you best!
