Board-certified dermatologist Dr. Jane Yoo explains why sunglasses matter for health. UV exposure causes cataracts, macular degeneration, and skin cancer around the eyelids. Look for sunglasses that block 99-100% of UVA and UVB rays, and protect children's eyes especially carefully.
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Hi, I'm Dr. Jane Yoo, board-certified dermatologist and Mohs surgeon. With summer here, it's the perfect time to talk about why wearing sunglasses outdoors is not just stylish but essential for your eye and skin health. Sunglasses do much more than just complete your look. Their most important job is protecting your eyes from harmful ultraviolet or UV rays. Prolonged UV exposure can increase your risk of serious eye conditions like cataracts, macular degeneration, and even skin cancer around the delicate eyelid area. That's why it's crucial to choose sunglasses that block 99 to 100% of UVA and UVB rays. So look for labels that say up to UV 400 protection. But UV protection isn't the only benefit. Sunglasses also reduce glare, especially from reflective surfaces like water, sand, or pavement. Which helps prevent eyestrain and fatigue. Polarized lenses are especially good at cutting down glare, making outdoor activities and driving safer and more comfortable. Another often overlooked benefit is that sunglasses protect the thin, sensitive skin around your eyes, including your eyelids. Squinting in the bright sunlight can cause premature wrinkles and increase your risk of skin cancer in that area. So wearing sunglasses helps reduce squinting and shields the delicate skin from sun damage. Sunglasses are equally important for kids. Their eyes are more vulnerable to UV damage, so investing in quality sunglasses designed for children is a smart way to protect their long-term eye health. Wearing sunglasses with proper UV protection every time you're outside is one of the simplest and most effective ways to protect your eyes and the skin around them. So whether you're hitting the beach, going for a hike, or just running errands, don't forget to grab your shades.