The Science Behind UV Protection and Why It's Crucial for Action Sports

Sunlight, while essential for life and a source of vitamin D, contains ultraviolet (UV) rays that can be harmful to our eyes. For those involved in action sports, the risk is even more pronounced due to prolonged exposure to direct sunlight and its reflections. Here's the science of UV rays, their effects on the eyes, and the indispensable role of quality sunglasses in protecting them.

What Are UV Rays?

Ultraviolet rays are a type of electromagnetic radiation that comes from the sun. They're invisible to the naked eye but can have significant effects on our skin and eyes. UV rays fall into three categories based on wavelength:

• UVA — the longest waves; they penetrate deep into the skin's layers, play a significant role in skin aging, and can contribute to the development of skin cancers.
• UVB — shorter than UVA and primarily responsible for sunburn; they also play a key role in the development of skin cancers and cataracts.
• UVC — the shortest; mostly absorbed by the Earth's atmosphere, so they don't typically pose a risk.

How Do UV Rays Affect the Eyes?

Prolonged exposure to UV rays can lead to a range of eye problems, including:

• Photokeratitis — often called “sunburn of the eye,” a painful condition caused by short-term exposure to UVB rays. Symptoms include red eyes, a gritty feeling, extreme light sensitivity, and excessive tearing.
• Cataracts — a clouding of the eye's natural lens that can blur vision. UVB rays increase the risk of developing certain types of cataracts.
• Macular degeneration — UV rays can contribute to the aging of the macula, the part of the retina responsible for sharp, central vision.
• Pterygium — a growth that starts on the white of the eye and can invade the cornea, potentially leading to vision problems.

Why It Matters More in Action Sports

Action sports enthusiasts — skateboarding, surfing, snowboarding, motocross — spend extended periods outdoors. That exposure, combined with reflections from water, snow, or concrete, significantly amplifies the harmful effects of UV rays.

Water can reflect up to 100% of UV rays, and snow as much as 85%. Surfers and snowboarders aren't just getting UV from direct sunlight — they're getting it from the surfaces they ride, too.

The Role of Quality Sunglasses

Sunglasses with 100% UVA and UVB protection effectively shield your eyes from the sun. Polarized lenses further enhance protection by cutting glare from reflective surfaces, making them a top choice for action sports.

When choosing sunglasses for action sports:

• Make sure they block 100% of UVA and UVB rays.
• Consider wrap-around styles that stop UV rays from sneaking in from the side.
• Opt for polarized lenses to reduce glare, especially for water or snow sports.

The thrill of action sports comes with challenges, and one that's frequently overlooked is UV harm. Understand the science, invest in quality eyewear — every pair of Flight shades is UV400 rated — and keep enjoying what you love with your eyes protected.