Summer brings longer days and stronger sunlight. Nowadays, you'll see more people
wearing photochromic lenses, which adapt their tint based on light exposure.
These lenses are a hit in the eyewear market, especially in summer, thanks to their ability
to change color and provide protection from the sun's rays. More individuals are recognizing
the harm UV rays can cause, not just to the skin but to our eyes too.
While UV damage to the eyes might not be as immediate as sunburn, long-term exposure can lead to serious eye issues, such as cataracts and macular degeneration.
In China, there's still a lack of consensus on when to wear sunglasses. Despite strong outdoor light, many opt not to wear protective eyewear.
Photochromic lenses, which correct vision and protect from light without needing to switch glasses, are becoming a favored choice.
Photochromic lenses darken in bright light (like outdoors) and clear up inside. This change is due to a substance called silver halide in the lenses,
which reacts to light, changing the lens color based on light intensity and temperature. So, lenses darken under strong sunlight and lighten
in lower light or cooler temperatures.
Here's a quick look at some common questions about photochromic lenses:
1.Do they offer clear vision?
Yes, high quality photochromic lenses are clear indoors and don't reduce visibility.
2.Why might lenses not change color?
If they don't darken in sunlight, the light-sensitive material in the lenses might be damaged.
3.Do they wear out?
Like all lenses, they have a lifespan, but with good care, they should last 2-3 years.
4.Why do they seem to darken over time?
If not maintained, the lenses might not fully clear up again, especially if they're lower quality. High-quality lenses shouldn't have this issue.
5.Why are gray lenses common?
They reduce light without altering colors, providing a natural view, and they suit everyone, making them a popular choice.
Post time: Mar-26-2024