Late Summer Sun

Late summer is often one of the most enjoyable times of the year. The crowds have thinned, the weather is more forgiving, and the light takes on that golden quality which makes evenings especially beautiful. Families linger in gardens, children run through parks, and many of us take last-minute seaside trips before autumn sets in.

But while the sun may feel gentler than in the peak of July, it can still pose a risk to our eyes. Protecting your vision during late summer is just as important as in midsummer – perhaps even more so, because many people let their guard down once the hottest weeks have passed.

Eye health specialists warn that the impact of sun exposure is cumulative, meaning it adds up over the years. The UV rays you’re exposed to now may not cause noticeable damage today, but they can contribute to serious eye problems later in life. That’s why learning how to protect your vision in the late summer sun is vital for both immediate comfort and long-term health.

How the Sun Affects the Eyes

When we think about sun damage, skin is usually the first thing that comes to mind. However, our eyes are also highly vulnerable to ultraviolet (UV) light. The sun emits two types of rays that affect vision:

• UVA rays – penetrate deeply into the eye, potentially damaging the retina.

• UVB rays – have more energy  and can damage the cornea and lens.

Both types can be harmful, and unlike the skin, the eyes can’t “tan” or show obvious warning signs of UV damage.

The Hidden Risks of Sun Exposure

Short-term effects

• Photokeratitis: Sometimes referred to as “sunburn of the eye”, this painful condition can cause redness, tearing, blurred vision, and light sensitivity. It often occurs after long periods outdoors without eye protection, especially around water, sand, or snow.

Long-term effects

• Cataracts: UV light accelerates clouding of the lens, which can blur vision and eventually require surgery.

• Macular degeneration: Prolonged UV exposure is linked with degeneration of the macula, the part of the retina responsible for central vision.

• Pterygium: A growth on the white of the eye, often triangular in shape, which can cause irritation or vision changes.

• Eye cancer: Although rare, excessive UV exposure can increase the risk of certain eye tumours.

Why Late Summer Is Deceptive

As August fades into September, the air cools and the sun loses some of its intensity. This can create a false sense of security. Yet UV levels remain high enough to cause harm. A few points to keep in mind:

• UV rays don’t disappear after summer – they remain present whenever the sun shines.

• Clouds don’t block UV rays – up to 80% can pass through light cloud cover.

The sun sits lower in the sky – in late summer and early autumn, the sun’s lower angle often shines directly into your eyes, particularly during driving commutes.

How to Protect Your Eyes in Late Summer

Protecting your vision doesn’t mean avoiding the outdoors. It simply means adopting good habits and being mindful of the risks.

1. Choose the Right Sunglasses

Sunglasses are your first line of defence. Look for:

• UV400 protection or a label that guarantees 100% UVA and UVB blocking.

• Wraparound or oversized frames to reduce side exposure.

• Polarised lenses reduce glare – perfect if you spend time near water, sand, or drive when the sun is low in the sky.

Dark lenses don’t automatically mean better protection – what matters is the UV filter.

2. Wear a Wide-Brimmed Hat

A hat with a brim of at least 7 cm can block around half of UV rays reaching the eyes. Combined with sunglasses, this offers excellent coverage.

3. Take Care Around Reflective Surfaces

Late summer is still beach and boating season. Remember that water, sand, and even pale pavements can reflect up to 25% of UV rays into your eyes, intensifying exposure.

4. Don’t Forget Children’s Eyes

Children’s eyes are more sensitive than adults’ because their lenses allow more UV rays to pass through. Encourage kids to wear hats and sunglasses whenever they’re outside. Setting the habit early helps protect their eyes for life.

5. Protect Your Eyes While Driving

With the sun lower in the sky, glare can be severe – and dangerous – during morning and evening drives. Keep a pair of sunglasses in the car and ensure your windscreen is clean to minimise reflections.

6. Eat for Eye Health

Nutrition plays a role in protecting against long-term eye damage. Foods rich in antioxidants such as lutein and zeaxanthin (found in spinach, kale, and peas) and vitamins C and E (found in citrus fruits, peppers, nuts, and seeds) support eye health.

7. Stay Hydrated

Late summer heat can still cause mild dehydration, which may lead to dry, irritated eyes. Drinking enough water helps keep your eyes comfortable and your vision clear.

Warning Signs Not to Ignore

If you experience any of the following after time in the sun, it’s worth seeking advice from an optician or eye specialist:

• Painful, gritty sensation in the eyes

• Excessive tearing or redness

• Unusual light sensitivity

• Blurred or reduced vision

Prompt attention can prevent temporary issues from turning into something more serious.

Be mindful of the future

Late summer is a season to savour, filled with outdoor adventures, warm evenings, and opportunities to recharge before autumn. By taking a few simple precautions, you can enjoy the sun without compromising your eyesight.

The effects of UV exposure build slowly over time – but so too do the benefits of good protection. Each time you slip on sunglasses, pop on a hat, or remind your children to do the same, you’re helping to preserve your vision for the years to come.