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Sunglasses do more than add style or reduce glare on a bright, sunny day. They are crucial for protecting your eyes from long-term damage from ultraviolet (UV) light.
Excessive UV exposure can increase the risk of cataracts and macular degeneration. It may also lead to benign growths on the surface of the eye and increase the likelihood of skin cancer near the eyes. This is why eye doctors recommend wearing sunglasses for better overall eye health.
Both adults and children should wear sunglasses whenever outdoors in the sun. It’s also wise to wear sunglasses on cloudy or overcast days, as clouds only partially diminish the sun's UV rays. Establishing a habit of wearing sunglasses when outdoors can help lower the cumulative effects of lifelong UV exposure on your eyes.
Always look for 100% UV protection
When shopping for sunglasses, look for a tag or sticker that lists 100% UV protection. Some sunglasses are labeled “UV absorption up to 400nm,” meaning the lenses block UVA and UVB rays in wavelengths up to 400 nanometers. This is another way of saying they offer 100% protection from UV light.Polarized or non-polarized?
Polarized sunglasses only allow certain wavelengths from a specific direction to reach your eyes. This helps make your vision clearer since it reduces glare. Many people prefer polarized glasses for activities like driving, boating, or skiing. However, they make it difficult to view LCD screens and may not be suitable for all situations. Just because a lens is polarized, it does not necessarily mean it offers UV protection. Always check the label to ensure your eyes are getting the UV protection they need. Transition lenses, which become darker when exposed to UV light, should also be checked for their UV protection.Some more tips on how to choose sunglasses:
- Sunglasses with a wraparound style offer the best overall eye protection. This is because they limit the amount of sunlight that reaches your eyes from all angles.
- Remember that darker sunglasses will not offer any added UV protection for your eyes.
- If you require corrective lenses, most frames for sunglasses can be ordered with them.
- If you prefer not to wear wraparound sunglasses, choose a frame with a wider temple. This will also help block light coming from the sides.
