Although cleaning sunglasses and eyeglasses is relatively simple, it does merit some forethought, says Annette Bade, OD, associate dean of clinics and professor of optometry at High Point University in North Carolina.
This is partly because many eyeglass lenses have coatings designed to reduce glare, resist scratches, filter UV light, and otherwise improve comfort and vision.
These coatings are delicate, she says. The wrong cleaner, too much heat, or abrasive materials can damage them. “Cleaning lenses properly helps protect these coatings, preserves the clarity of the lenses, and extends the life of the glasses,” she says.
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