Shady Business: What You Don’t Know About UV Rays Could Harm Your Eyes

We all know the drill: lather on the SPF, throw on a wide-brimmed hat, and stay shaded between 11 and 3. But while skin protection is top of mind in the summer, one crucial part of our body is often overlooked—our eyes. As July marks UV Sun Protection Month, Specsavers Clinical Services Director Naomi Barber wants Canadians to rethink how we approach sun safety, especially when it comes to our vision.

“Just like you wouldn’t go to the beach without sunscreen,” Barber says, “you shouldn’t spend time outdoors without proper eye protection.” The effects of prolonged UV exposure can be serious, from painful conditions like photokeratitis (a literal sunburn of the eyes) to long-term risks like cataracts and macular degeneration. “It’s not just about comfort—it’s about preserving your eyesight.”

Still, many of us assume our go-to sunglasses are doing the job. Not so fast, Barber cautions. “One of the biggest misconceptions is that all sunglasses offer the same level of protection. In reality, many lack the proper UV coating. And darker lenses without UV filters can actually make things worse by dilating the pupil, allowing more UV rays to reach the eye.” Her advice? Always look for sunglasses labeled with 100% UVA and UVB protection—bonus points for wraparound styles.

While UV exposure is harmful to everyone, children and people with lighter-coloured eyes are at even greater risk. “Children’s eyes are still developing and are less able to filter UV radiation,” she explains. “And if you have blue or green eyes, you have less pigment to protect against the sun’s effects.” Sunglasses and hats should be non-negotiables in every family’s summer routine.

And don’t forget the beach. “Water and sand reflect UV rays directly into your eyes—even if you’re under an umbrella,” Barber adds. “That means double the exposure: direct and reflected.”

So, what else can we do? Aside from choosing the right eyewear, Barber recommends making UV protection a year-round habit, wearing broad-brimmed hats, and avoiding peak sunlight hours when possible. And just like regular dental check-ups, eye exams should be part of your routine. “Ideally, Canadians should have their eyes checked every two years. We can spot early signs of sun-related damage and help prevent serious vision problems down the road.”

And if you’ve already noticed symptoms—like blurred vision or light sensitivity—don’t ignore them. “See your optometrist as soon as possible,” Barber advises. “The earlier we catch damage, the better your chances of preserving your long-term eye health.”

So this summer, don’t just grab your sunscreen and call it a day. Your future self—eyes included—will thank you for seeing the bigger picture. —Noa Nichol