Flying High Means Higher UV Risk
Most people think about sun protection on the beach or at the pool. But pilots face one of the highest UV exposures of any profession — and most don't give it a second thought. If you're spending hours in the cockpit, understanding UV radiation and how to protect your eyes isn't optional. It's essential.
UV Radiation Increases with Altitude
The Earth's atmosphere acts as a natural UV filter. The higher you fly, the thinner that filter becomes. Here's what the numbers look like:
- At sea level: Baseline UV exposure.
- At 10,000 ft: UV intensity increases by approximately 25%.
- At 30,000 ft: UV intensity can be nearly double that at sea level.
- Above 40,000 ft: Exposure increases even further, with less atmospheric protection.
For commercial pilots logging hundreds of hours per year at cruise altitude, cumulative UV exposure is a serious long-term health concern.
The Health Risks of UV Exposure for Pilots
Prolonged UV exposure without proper eye protection is linked to several serious conditions:
Cataracts
UV radiation accelerates the clouding of the eye's natural lens. Studies have shown that pilots have a significantly higher rate of cataract development compared to the general population — a direct consequence of elevated UV exposure at altitude.
Macular Degeneration
Cumulative UV and high-energy visible (HEV) light exposure is associated with damage to the macula, the part of the retina responsible for sharp central vision. This can lead to permanent vision loss over time.
Photokeratitis
Essentially a sunburn of the cornea, photokeratitis causes temporary but painful inflammation, blurred vision, and light sensitivity. It can occur after even short periods of intense UV exposure at altitude.
Pterygium
A growth of tissue on the white of the eye that can extend over the cornea and affect vision. UV exposure is a primary risk factor.
What to Look for in UV-Protective Aviation Eyewear
Not all sunglasses offer the same level of UV protection. When choosing eyewear for flying, look for:
- 100% UVA and UVB protection: This is the baseline standard. Never settle for less.
- UV400 rating: Blocks all light rays with wavelengths up to 400 nanometers, covering the full UV spectrum.
- Quality lens materials: Polycarbonate and Trivex lenses inherently block UV radiation and are also impact-resistant — a dual benefit for aviation use.
- Wraparound coverage: Peripheral UV exposure is often overlooked. A wraparound frame reduces light entering from the sides.
Don't Rely on the Windscreen Alone
Many pilots assume their aircraft's windscreen provides adequate UV protection. While some aircraft windscreens do block a portion of UV radiation, the level of protection varies widely by aircraft type and age. Side windows often provide little to no UV filtering. Your sunglasses are your primary line of defense.
SR Performance Eyewear: UV Protection Built for Aviators
Every pair of SR Performance Eyewear sunglasses is engineered with 100% UV400 protection as a standard feature — not an upgrade. Combined with impact-resistant lenses and aviation-optimized tints, our eyewear is designed to protect your vision for every hour you spend in the sky. Because your eyes are your most important instrument.