When it comes to the winter, it not only brings the cold weather, but also brings the foggy glasses lens. Whether it’s from wearing a mask, sipping a hot drink, or stepping into a warm building or car from the cold, fogged-up glasses can be a constant nuisance. They will disrupt your vision and could be a danger especially while driving. Fortunately, there are effective methods to avoid this and keep your glasses fog-free. In this blog, we'll guide you 5 dos and 4 dont's to prevent eyeglasses from fogging.

1. Why do lenses fog up?
2. The 5 Dos to Prevent Eyeglasses from Fogging.
3. The 4 Don'ts to Prevent Eyeglasses from Fogging.

1. Why do lenses fog up?

Foggy lenses are caused by the condensation of moisture on the surface of your glasses. This happens when there is a sudden change in temperature and the warm, moist air comes into contact with the cooler surface of your lenses. The moisture condenses into tiny water droplets, creating a foggy effect.

2. The 5 Dos to Prevent Eyeglasses from Fogging.

1. Opt for Anti-Fog Lenses: Anti-fog lens come with anti-fog coatings that permanently prevent condensation. If you often experience foggy or blurry vision, choosing anti-fog lenses for your next pair of glasses is a great solution. Additionally, we offer lenses that combine anti-blue light and anti-fog features. To get this, you can select anti-blue lenses first and then add the anti-fog coating for comprehensive protection.
2. Get Anti-fog Sprays and Wipes: Anti-fogging products can leave a thin layer on your lenses that prevents condensation from forming. Widely available on the market, they are easy to use—simply spray or wipe your lenses according to the product instructions and let them air dry. You can repeat this process as needed to maintain the anti-fog effect and ensure consistent clarity in your vision.
3. Wash Your Lens with Dish Soup: Dish soapy water is a great formula for this method, because it leaves a film that is thin enough to see through but thick enough to repel the water molecules that form fog. Rub a small drop of dish soap on your lenses and rinse gently. Let them air dry or wipe gently with a microfiber cloth.
4. Apply Shaving Foam on Your Lens: Shaving form can be effective for a few hours and is easy to apply when you’re in a pinch. Apply a small amount, spread it evenly, and gently wipe it off with a soft cloth.
5. Keep a Microfiber Cloth Nearby: A microfiber cloth is a great tool for quickly wiping away moisture without scratching your lenses. Keep one in your bag or pocket for easy access.

3. The 4 Don'ts to Prevent Eyeglasses from Fogging.

1. Toothpaste: Some toothpastes may contain baking soda or other abrasive ingredients which will scratch your lenses surface, making your lens more blurry to see.
2. Hand Sanitizer: While some may suggest using hand sanitizer to prevent fogging on goggles, it's important to avoid using it on prescription glasses. The high alcohol content in these products can be too abrasive, leading to damage of the protective coatings on the lenses.
   
3. Vinegar: Many lenses are typically made from plastics like polycarbonate or high-index materials and often come with special coatings such as anti-reflective or anti-scratch layers. The acidity in vinegar can compromise these coatings, leading to potential damage or reduced effectiveness. Additionally, vinegar does not provide anti-fog properties and won’t prevent fog from forming on your lenses.
4. Polyethylene Terephthalate (PET) Film Limitations: While PET anti-fog films have been applied in various workplace settings to prevent lens fogging, studies indicate that they might have unintended drawbacks. Specifically, these films can sometimes increase moisture accumulation and droplet formation on the lenses.

Foggy glasses are frustrating, but they are manageable! Check out our 5 essential dos and 4 critical don'ts for preventing fog on your eyeglasses, so you can keep your vision clear and avoid harm your lenses.