No, eyeglasses are not typically considered waterproof in the practical sense of being suitable for wear during swimming or other water activities.
While the materials used for eyeglass frames and lenses are not usually water-soluble and can withstand getting wet occasionally (like in the rain), they are not designed for prolonged exposure, submersion, or use in environments like swimming pools or natural bodies of water.
Why Water and Eyeglasses Don't Mix
Wearing eyeglasses in water presents several issues, as highlighted by guidelines on protecting eyewear:
- Risk of Damage: Saltwater can be particularly harsh. Wearing glasses in saltwater pools or the ocean can corrode and scratch the frame and lenses. Chlorine in pools can also potentially cause damage over time.
- Risk of Loss: Eyeglasses are not secured to your face for aquatic movement. If you dive or swim underwater with glasses, they can easily fall off due to water resistance and movement, leading to them being lost or broken.
- Lack of Eye Protection: Contrary to what might be assumed, swimming with regular eyeglasses won't protect your eyes from chemicals and bacteria present in pool water, lakes, or oceans. For actual eye protection and clear vision underwater, prescription swim goggles are necessary.
Based on these points, guidelines explicitly state "Don'ts. Wear glasses in saltwater pools, as they can corrode and scratch. Dive or swim underwater with glasses, because they can fall off and won't protect your eyes from chemicals and bacteria."
Therefore, while a splash of water won't ruin your glasses, their design and material limitations make them unsuitable for use in water, meaning they are not functionally waterproof for swimming, diving, or similar activities.
