Quick Answer
Regular sunglasses do not provide adequate protection against snow blindness, which is caused by prolonged exposure to intense snow glare. Wearing sunglasses with UV protection may not filter out the specific wavelengths of light that cause snow blindness. Specialized snow goggles are necessary to prevent this condition.
Understanding Snow Blindness
Snow blindness, also known as photokeratitis, is an eye injury caused by exposure to intense snow glare. This occurs when the ultraviolet (UV) radiation from the snow reflects off the surrounding environment and enters the eyes at a shallow angle. As a result, the cornea becomes inflamed, leading to symptoms such as eye pain, sensitivity to light, and blurred vision.
Choosing the Right Goggles
To prevent snow blindness, it’s essential to wear goggles specifically designed for snow sports. Look for goggles that block 99-100% of UVA and UVB rays, and have a wraparound design to prevent light from entering from the sides. Choose goggles with a lens polarization of at least 90% to reduce glare. Some high-quality snow goggles also feature an anti-fog coating to prevent vision obstruction.
Additional Precautions
In addition to wearing proper goggles, it’s crucial to take other precautions to prevent snow blindness. Avoid looking directly at the snow when it’s reflecting sunlight, especially during peak sun hours. If you’re skiing or snowboarding, try to stay in the shade or look away from the sun. If you do experience snow blindness symptoms, seek medical attention immediately, as prolonged exposure can lead to permanent damage.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.