Needing to change between sunglasses and prescription glasses every time that you go inside or outside can be a real pain. Thankfully, there is a solution for you.
Light sensitive sunglasses (also known as photochromic lenses) are an impressive technological feat that combines the visibility of traditional glasses with the protection and comfort of sunglasses. To help you get a better idea of whether photochromic lenses are right for you, here is a breakdown of how they work:
Photochromic lenses are clear indoors and dark outdoors, but how does that work? The answer lies in ultraviolet activation. Photochromic lenses contain certain molecules that react when exposed to ultraviolet light. UV light is much stronger outside, when you are in sunlight. This means that your photochromic lenses won't activate indoors unless you happen to be near a source of ultraviolet light.
It can be difficult to figure out what blocks UV light and what does not. For instance, clouds and windows do not block UV rays very well, so your photochromic lenses will likely darken during storms or when you are sitting at a table by a window.
However, many types of glass do block UV rays, such as special windows and many windshields. Naturally, photochromic lenses also catch harmful UV rays before they reach your eyes.
The actual lens can be made out of several different kinds of materials.
If you do decide that photochromatic lenses appeal to you, then you should consult your optician (like those at Axon Optics). If you have any concerns, they can help you weigh the pros and cons of your specific situation.
Photochromic Lenses and Migraines
Many migraines are caused by an abundance of visual stimulation. By reducing that stimulation, it is possible to reduce the frequency and severity of migraines. Studies indicate that photochromic lenses are effective at reducing such visual stimuli and thereby making migraines less problematic for some individuals.Share
22 September 2015
At what age should you consider getting your kid contact lenses? This was one battle that my son and I went back and forth about for over a year. He claimed that he needed contact lenses for school because his glasses got in the way and he just didn't like the way he looked while wearing them. I was worried that he wouldn't take care of them properly and that they would lead to eye infections and other problems. It took a while, but I did more than enough research to help me decide if it was time for him to get contact lenses. I have shared everything that I have learned about contact lenses and teenagers here on this blog.