UV Protection and Eye Health: Choosing the Right Sunglasses

Feb 12, 2025

Most people know the dangers of UV exposure on the skin, but few realise that prolonged UV exposure can also harm your eyes. Long-term exposure to UVA and UVB rays increases the risk of serious eye conditions, including cataracts, macular degeneration, and even cancer of the eyelids.

Maleny Optical helps patients choose high-quality sunglasses that offer the best protection against UV damage. Investing in UV-blocking sunglasses is an essential step in maintaining long-term eye health.

The Effects of UV Radiation on Eye Health

Australia has some of the highest UV levels in the world, making sunglasses a necessity rather than a fashion accessory.

Without proper UV protection, your eyes are at risk of:

1. Photokeratitis (Sunburn of the Eyes)

Short-term, intense UV exposure can cause a painful sunburn on the cornea.
Symptoms include redness, watery eyes, blurred vision, and discomfort.
Commonly known as snow blindness, but also caused by bright sunlight near water, beaches, or reflective surfaces.

2. Cataracts

UV exposure accelerates cataract development, leading to a cloudy lens and blurred vision.
Cataracts are one of the leading causes of vision impairment worldwide.
Wearing UV-blocking sunglasses from a young age can help delay their formation.

3. Macular Degeneration

The macula is responsible for sharp central vision, and UV exposure increases the risk of degeneration.
Macular degeneration can lead to permanent central vision loss over time.

4. Pterygium (Surfer’s Eye)

A growth on the white part of the eye that can extend over the cornea, causing irritation, redness, and, in some cases, vision obstruction.
Common among surfers, beachgoers, and outdoor workers.

5. Skin Cancer Around the Eyes

The eyelids and surrounding skin are highly susceptible to UV-related skin cancer.
Sunglasses with full coverage and UV protection can help prevent damage.

How to Choose the Right Sunglasses for Maximum UV Protection

Not all sunglasses are created equal. When selecting sunglasses, look for the following features to ensure complete UV protection:

1. 100% UV Protection (UV400 Rating)

Choose sunglasses labeled UV400, which block 100% of UVA and UVB rays.
This prevents long-term damage to the eyes caused by UV exposure.

2. Polarized Lenses for Glare Reduction

Polarized lenses reduce glare from water, roads, and other reflective surfaces.
They improve visual clarity and comfort, especially for driving and outdoor sports.
While polarization does not increase UV protection, it enhances contrast and reduces eye strain.

3. Wraparound Frames for Full Coverage

UV rays enter from the sides, so wraparound sunglasses provide better protection than smaller frames.
Ideal for outdoor workers, beachgoers, and athletes.

4. Lens Colour & Tint – What Matters?

Lens colour does not affect UV protection but can enhance visual comfort:

Brown/Amber Lenses: Enhance contrast and improve depth perception—great for sports.
Grey Lenses: Reduce brightness without distorting colours—ideal for everyday wear.
Green Lenses: Offer a balance between contrast and true colour perception.

5. Impact-Resistant & Scratch-Resistant Lenses

Polycarbonate lenses are durable and resistant to impact, making them a great choice for active lifestyles.

Choosing the Right Sunglasses for Your Lifestyle

At Maleny Optical, we recommend different sunglasses depending on your activities and environment:

Everyday Wear

UV-blocking lenses with polarized coating for clear vision.
Comfortable and lightweight frames for all-day wear.

Driving & Commuting

Polarized sunglasses to reduce glare from roads and dashboards.
Wraparound styles for maximum UV protection.

Outdoor & Sports Activities

Impact-resistant sunglasses for running, hiking, and cycling.
Polarized lenses for water sports, fishing, 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.

At Maleny Optical, we offer a wide selection of high-quality sunglasses to suit your lifestyle and optical needs.

Prescription Sunglasses: UV Protection Without Compromise

If you wear prescription glasses, you don’t have to sacrifice UV protection. We offer:

Prescription Sunglasses: Custom lenses with full UV protection and polarization.
Clip-On Sunglasses: A convenient solution for glasses wearers.
Transitions Lenses: Lenses that darken in sunlight and clear indoors, offering seamless UV protection.

Speak to our optometry team about the best prescription sunglasses for your needs.

Book a Sunglasses Consultation

Don’t let UV exposure put your eye health at risk. Visit Maleny Optical to explore our range of high-quality UV-blocking sunglasses and find the perfect pair for you.