A sunny afternoon feels good, but ultraviolet (UV) light is one of the few eye hazards you can control with a simple habit. The National Eye Institute and the American Academy of Ophthalmology note that long-term UV exposure is linked to cataracts and may contribute to other eye problems, and a single day of intense exposure can cause a painful, temporary sunburn of the cornea. This post covers practical ways to protect your eyes outdoors and how that fits into a bigger picture of Support for Healthy Vision.
Your skin is not the only part of you that sunburns. The thin surface of the eye, the lens inside it and the delicate tissue around it all absorb UV radiation over a lifetime. Researchers link cumulative exposure with cataracts, growths on the white of the eye called pterygium, and possibly other conditions. The effect is gradual, which is exactly why steady daily protection works better than occasional effort.
Dark lenses without UV protection can be worse than no sunglasses, because your pupils widen behind them and let in more light. Choose a pair labeled as blocking 100 percent of UVA and UVB rays, or UV400.
Sunlight also reaches your eyes from the sides and from below. Wide frames and wraparound styles block more of it, and a wide-brimmed hat cuts the glare from above.
Clouds do not block all UV, and snow, sand and water bounce it back at you. Keep sunglasses in your bag, your car and your jacket so wearing them becomes automatic. Children's eyes need protection too, so help them build the habit early.
Looking directly at the sun, including during an eclipse, can damage the retina permanently. Ordinary sunglasses are not enough. Use certified eclipse glasses or a proper solar viewer.
Sunglasses prevent some problems, but they cannot catch the ones already developing. A comprehensive dilated eye exam lets your eye doctor check the retina, optic nerve and lens, often before you notice any symptoms. People with diabetes, a family history of eye disease, high blood pressure or a history of eye injury may need exams more often, so ask your doctor what schedule suits you. Call promptly if you notice sudden vision changes, flashes of light, a curtain over part of your vision or persistent pain.
A supplement cannot do the job of sunglasses or an eye exam. Some people nonetheless like to add nutrients to a broader healthy-vision plan. If that sounds like you, read the Supplement Facts panel closely and visit the official iGenics website to see how the seller describes the formula. Keep expectations realistic: it is marketed to support healthy vision, not to treat eye disease, and individual results vary. Check with your doctor or pharmacist before you start, particularly if you take medication, are pregnant or nursing, or have an eye condition.
Put sunglasses by the door so you grab them on the way out. Add a hat for long days outside. Eat a varied, colorful diet. Skip tobacco, which is linked to cataracts and macular degeneration. Keep your eye exam appointments. These small steps are the core of everyday Support for Healthy Vision, and none of them requires special equipment.
Yes. Snow reflects much of the UV that reaches it, and low winter sun creates glare, so UV-blocking sunglasses are useful in every season.
Not necessarily. Price does not determine UV protection. The label stating UV400 or 100 percent UVA and UVB blocking matters far more, and a well-fitting inexpensive pair that you actually wear beats a costly pair left at home.
Some contact lenses block part of the UV spectrum, but they do not cover the skin and tissue around your eyes. Ask your eye doctor whether to use both together.
Affiliate disclosure: The button on this page is an affiliate link, and the publisher may earn a commission if you purchase through it, at no extra cost to you. This post is educational and does not replace advice from an eye doctor or physician.