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Is Anti-fog Coating on Glasses Worth It?

If you wear prescription eyeglasses, you know how annoying it can be when they fog up. It can make it difficult or impossible to see what you are doing and where you are going. Furthermore, fogged glasses can be a safety hazard since they limit the ability to see until you clear the fog. 

 

Why Fogging in Glasses Is a Big Deal

 

Cold weather, wearing a face mask, cooking, exercising, and more can create fogging on glasses. Most people who wear glasses consider fogging a mere nuisance. However, this problem can have significant safety implications.

 

Glasses can fog up while you are playing sports, driving, working with chemicals, or using machinery. In such cases, the consequences can be disastrous. So, it is a good idea to find the best anti-fog solution to minimize the risks. 

 

Why Do Lenses Fog Up?

 

Lenses fog up when moisture in the air condenses on them due to a temperature variance between the two sides of your lenses. They can also fog up when the lenses catch your breath. The lenses trap moisture from your breath and heat from your face, causing them to fog up. 

 

Fogging is possible on both the inside and outside of your lenses. Thus, anti-fog solutions are necessary on your lenses' interior and exterior. Changes in physical activity, temperature, and humidity will affect how quickly your glasses fog up. Lens fogging tends to increase on humid and hot days and in cold weather. Your physical activity can increase fogging due to your sweat.

 

Anti-fog Glasses

 

One of the most effective solutions to foggy glasses is an anti-fog coating. These are lenses designed never to fog up. They are a cheaper option than purchasing anti-fog sprays, wipes, or gels for glasses. Instead of buying these products every few months, invest a little more in anti-fog lenses that can last years without fogging up.

 

The anti-fog coating does not wear out, so you do not have to worry about periodically reapplying gel or spray. These specialized lenses pay for themselves the longer you use them. Most importantly, they are more convenient than other anti-fogging solutions. 

 

How Do Anti-fog Coatings on Glasses Work?

 

Anti-fogging agents prevent water condensation by minimizing surface tension. This results in a non-scattering water film instead of single droplets. Essentially, they prevent water vapor from forming the numerous tiny droplets you see as fog. 

 

However, it would help to remember that some anti-fogging coatings are more effective than others. Most will fog up if the humidity is sufficiently high. Nevertheless, anti-fog lenses are much better than regular lenses. NASA developed these agents in the 60s to prevent visors used by astronauts from fogging up while out in space.

 

Is Anti-fog Coating Worth It?

 

Studies suggest that anti-fog glasses can improve safety and performance significantly. Some of the reasons to invest in anti-fog coating for your glasses include:

 

  • Manage sudden environmental changes

  • Combat humidity and heat

  • Decrease frustrations

  • Improve efficiency and performance

  • Increase visibility to enhance vision

 

Conclusion

 

Anti-fog coatings on glasses will allow you to see well regardless of whether there is a sudden temperature change or you are wearing a face mask. They do the hard work for you so you do not have to keep removing your eyeglasses to clean them. 

 

For more on anti-fog glasses, visit Davie Family Eye Care at our Davie, Florida office. Call (754) 238-5360 to schedule an appointment today.

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