Yes, there are several dangers associated with putting sunglasses in the dishwasher:
Damage to the frame: Sunglasses are typically made from various materials, including plastic, metal, and delicate coatings. The high heat and strong water pressure in a dishwasher can cause these materials to warp, bend, or break, damaging the frame and making the sunglasses unwearable.
Lens damage: Sunglasses lenses are often treated with special coatings to provide UV protection and reduce glare. The harsh conditions in a dishwasher can strip these coatings, scratch the lenses, or cause other damage, affecting their optical performance.
Discoloration: The high temperatures in a dishwasher can cause the colors of certain sunglass frames to fade or change, altering their appearance permanently.
Damage to embellishments: Some sunglasses have decorative elements like rhinestones, studs, or other adornments. The dishwasher's intense water pressure and heat can loosen or dislodge these embellishments, resulting in a less appealing appearance.
Warping and misalignment: The dishwasher's mechanical action can lead to the frames becoming misaligned, causing discomfort and hindering their ability to fit properly.
Water seepage: Even if the sunglasses survive the dishwasher cycle, water can get trapped in crevices and joints, leading to potential rusting in metal parts or mold/mildew growth in certain cases.
Adhesive damage: Many sunglasses use adhesives to secure lenses and other parts. The heat and moisture in the dishwasher can weaken or dissolve these adhesives, causing lenses to become loose or fall out.
To clean your sunglasses safely, it's best to use a mild soap or lens cleaner, warm water, and a soft, lint-free cloth. Gently clean the lenses and frames with the cloth, avoiding excessive pressure. Store your sunglasses in a protective case when not in use to prevent scratches and damage.