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Everyone who’s ever worn eyeglasses — or even sunglasses — understands the frustration that comes when your glasses get all foggy. It happens whenever there’s a temperature difference between the lenses and the air — like when you come back inside the warm house after spending time outside in the winter cold, lean over a pot of boiling water on the stove, drink a hot beverage, exercise, or even wear a face mask.
At Wolcott Optical, we understand the importance of clear vision and functional eyeglasses. That’s why we’ve compiled this handy guide explaining the science behind condensation and some expert tips to help you prevent fogging.
The Science Behind Condensation
Your glasses fog up for the same reason your windows do: condensation. Warm air is typically more humid than cold air, which means that whenever the two meet, there’s likely to be condensation.
Condensation occurs when the cold glass of the lenses comes in contact with warmer, more humid air, causing the water molecules in the air to cool down and become a liquid. These tiny droplets of water are what makes your glasses fog up.
For example, when you venture outside on a winter walk, the lenses of your glasses get colder. When you step back inside, the warm air causes condensation to form. The same thing happens when you wear a face mask — your warm breath escapes out of the top of the mask, right where your glasses are.
Ways to Prevent Fogging
Condensation on your glasses is undoubtedly a nuisance, especially in moments when it’s critical to be able to see clearly. No one wants to miss a goal because their glasses fogged up during the soccer game or have to constantly wipe their lenses while cooking dinner.
Fortunately, there are some easy steps you can take to help prevent your glasses from fogging up. With the right techniques, you can enjoy clear vision and enjoy your favorite activities without annoying interruptions.
Washing Your Glasses
The simplest prevention method is washing your glasses with soap and water, then letting them air dry. This leaves a thin film on the surface of the lenses that resists fog. Anti-fog wipes and sprays work the same way, creating a protective layer on the lenses to minimize condensation.
If you decide to wash your glasses, just be sure you’re doing it properly so you don’t accidentally damage them. Improper washing can scratch the lenses, making condensation the least of your worries. Follow the tips outlined in our helpful guide, “How to Clean Your Glasses Without Damaging Them”.
Proper Storage
When you’re not wearing your glasses, be sure to store them properly. Invest in a quality case that will keep heat and moisture out. Not only can this help prevent fogging, but it will also keep them free of dirt, dust, and smudges, keeping them in excellent condition for years to come.
Mindful Masking
If you need to wear a face mask with your glasses, ensure it fits snugly around your nose to prevent warm air from escaping upwards. Opt for a mask with an adjustable nose bridge for a better seal. You can also try placing a folded tissue at the top of the mask to absorb moisture from your breath.
Exercising with Care
While exercising or participating in sports, wear a headband or sweatband to reduce moisture accumulation near the glasses. Consider getting some sports-specific glasses with special ventilation features designed to improve airflow and minimize fogging. If you’re a skier, swimmer, or snowboarder, you can get prescription goggles that don’t just help you see better, but also prevent condensation.
Specialized Products
For a more permanent solution, you can buy glasses with special anti-fog coatings or treatments. There are also lens inserts and attachable films available that prevent condensation buildup. If all else fails and fogging continues to be a frequent issue, consider contact lenses.
Upgrade Your Glasses This Winter with Wolcott Optical
At Wolcott Optical, we’re proud to be experts in all things eyeglasses. Whether you want to learn more about specialty lens coatings, get some advice on which anti-fog products to try, or just want a new look, we can help you find the quality vision solutions you deserve.
Come visit us in Millcreek, Utah, to browse our comprehensive selection of lenses and frames that aren’t just stylish, but will make your life easier.
