Why UV Protection Is Essential for Eye Health

May 28, 2025

Most people understand the importance of wearing sunscreen to protect their skin from UV damage, but fewer realise that our eyes are just as vulnerable to harmful ultraviolet (UV) rays. Long-term exposure to UVA and UVB rays can cause serious eye conditions, including cataracts, macular degeneration, and even eye cancer.

At South Coast Optometrists, we emphasise the importance of UV-blocking sunglasses to protect your eyes from permanent damage and maintain long-term vision health.

The Effects of UV Radiation on Your Eyes

Australia has some of the highest UV levels in the world, making eye protection essential. Without proper UV protection, your eyes are at risk of developing several conditions:

1. Photokeratitis (Sunburn of the Eye)

A painful condition caused by short-term, intense UV exposure.
Symptoms include redness, pain, tearing, and blurred vision.
Can occur after spending time in snow, water, or bright outdoor environments without sunglasses.

2. Cataracts

UV exposure accelerates the formation of cataracts, a condition where the eye’s lens becomes cloudy, leading to blurry vision and glare sensitivity.
One of the leading causes of vision impairment worldwide.

3. Macular Degeneration

A serious retinal condition that leads to permanent central vision loss.
Linked to long-term UV exposure, making protection a key preventative measure.

4. Pterygium (Surfer’s Eye)

A growth on the white part of the eye that can extend over the cornea, causing irritation and affecting vision.
Most common in people who spend a lot of time outdoors, particularly on the water or in high-glare environments.

5. Skin Cancer Around the Eyes

The delicate skin around the eyes and eyelids is highly susceptible to UV-related skin cancers.
Sunglasses reduce the risk of UV-related skin damage.

Wearing high-quality UV-blocking sunglasses is one of the best ways to protect against these conditions.

How to Choose the Right Sunglasses for UV Protection

Not all sunglasses offer the same level of protection. When selecting sunglasses, look for the following features to ensure maximum UV defence:

1. 100% UV Protection (UV400 Rating)

The most important feature of sunglasses is their ability to block 100% of UVA and UVB rays.
Look for sunglasses labeled UV400, which block wavelengths up to 400 nanometres, covering all harmful UV rays.

2. Polarised Lenses for Glare Reduction

Polarised lenses reduce glare from reflective surfaces like water, roads, and glass.
Ideal for driving, fishing, boating, and outdoor activities where glare is a concern.
Polarisation does not increase UV protection but enhances visual comfort and clarity.

3. Wraparound Frames for Full Coverage

Sunglasses with wide lenses or wraparound designs block UV rays from the sides.
Reduces overall exposure and glare, providing better protection for your eyes.

4. Lens Colour & Tint – Does It Matter?

While lens colour does not determine UV protection, different tints can improve contrast and visual comfort:

Brown/Amber Lenses: Enhance contrast and improve depth perception—ideal for outdoor sports.
Grey Lenses: Provide a neutral, true-colour perception—perfect for everyday wear.
Green Lenses: Offer a balance between contrast and colour accuracy.

5. Impact-Resistant & Scratch-Resistant Lenses

Polycarbonate lenses are lightweight, durable, and resistant to shattering—a great option for active lifestyles.

Choosing the Right Sunglasses for Your Lifestyle

At South Coast Optometrists, we recommend different sunglasses depending on your lifestyle needs:

Everyday Wear

UV-blocking lenses with polarised coating for glare-free vision.
Lightweight, comfortable frames for all-day wear.

Driving & Commuting

Polarised sunglasses to reduce glare from roads and dashboards.
Wraparound designs for maximum UV protection.

Outdoor & Sports Activities

Impact-resistant sunglasses for protection during hiking, running, and cycling.
Polarised lenses for water sports and beach days.

Snow & High-Glare Environments

Sunglasses with mirror coatings to reflect intense sunlight.
Dark grey or brown lenses to enhance contrast in bright conditions.

South Coast Optometrists carries a range of high-quality sunglasses tailored to your vision needs and Australian outdoor conditions.

Prescription Sunglasses: UV Protection With Clear Vision

If you need prescription glasses, you don’t have to compromise on UV protection. We offer:

Prescription Sunglasses: Custom lenses with full UV protection and polarisation.
Clip-On Sunglasses: A convenient solution for glasses wearers.
Transitions Lenses: Lenses that automatically adjust to different lighting conditions.

Ask our team about prescription sunglasses designed to protect your eyes while providing crystal-clear vision.

Why Choose South Coast Optometrists for Sunglasses?

We are committed to helping you find the perfect sunglasses that combine UV protection, comfort, and style. Our experienced team will guide you in selecting the best lenses and frames to suit your lifestyle and ensure maximum eye protection.

Premium UV-blocking sunglasses
Prescription and non-prescription options
Custom fittings for the best comfort and coverage

Book a Sunglasses Consultation Now

Your eyes deserve the best protection from Australia’s harsh sun. Visit South Coast Optometrists to explore our range of high-quality UV-blocking sunglasses and find the perfect pair for your needs.