Light-adaptive lenses, also known as photochromic lenses, are designed to automatically adjust their tint based on the amount of UV light they are exposed to. While these lenses provide excellent protection and comfort in changing light conditions, you might notice that they don’t get as dark while you’re driving.
Why This Happens
The reason lies in the UV protection provided by your car’s windshield. Most modern windshields are made with a UV-blocking layer to protect you from harmful rays. While this is excellent for your skin and eyes, it also means that less UV light reaches your lenses inside the car.
Since light-adaptive lenses rely on UV exposure to activate their darkening process, the reduced UV levels inside your vehicle prevent the lenses from reaching their maximum tint.
What This Means for You
Your lenses will still provide UV protection and reduce glare while driving.
The lenses may appear lighter than when you’re outside, even in bright sunlight.
This is normal behavior and does not indicate a defect in your lenses.
Tips for Driving
If you need extra shade or glare reduction, consider keeping a pair of polarized sunglasses handy for driving.
Remember that light-adaptive lenses continue to protect your eyes from UV rays, even when not fully darkened.
Light-adaptive lenses are a versatile solution for everyday wear, offering convenience and protection. Understanding how they react inside the car helps you get the most out of your lenses and set realistic expectations.