Photochromic lenses are made of a special type of plastic that contains molecules that react to UV light. When exposed to UV rays, these molecules change shape, causing the lenses to darken. This process is reversible, so when the lenses are no longer exposed to UV light, they return to their clear state.

Yes, photochromic glasses are generally considered good for your eyes. These lenses are designed to automatically adjust to different lighting conditions, becoming darker in bright sunlight and clearer indoors. This adaptive feature helps protect your eyes from harmful UV rays, reducing the risk of conditions such as cataracts and macular degeneration. Additionally, photochromic lenses can enhance visual comfort by minimizing glare in changing light environments. However, it's essential to ensure that the lenses provide sufficient UV protection, and regular eye check-ups are recommended to monitor overall eye health.

The best photochromic color depends on personal preference and intended use. Gray and brown are popular choices as they maintain true colors, while yellow and green can enhance contrast. Consider your lifestyle and preferences when choosing the best color for your photochromic lenses.

Yes, generally, anyone can wear photochromic lenses. They are suitable for most individuals who require vision correction and want the convenience of adaptive lenses that adjust to varying light conditions. However, it's recommended to consult with an eye care professional to ensure they are the right choice for your specific vision needs.

Several factors can affect the darkness of photochromic lenses, including temperature, UV intensity, and the age of the lenses. If your lenses are not getting as dark as expected, it could be due to insufficient UV exposure or the need for replacement if they are past their effective lifespan.