Most of us tend to selectÂ sunglasses based onÂ design but it is actually more Â important to wear shades that provide proper UV protection.Â It should also be noted that the degree of darkness has no effect on UV rays and in fact, dark lens can cause our pupil to dilate andÂ without that UV protection behind it, weâ€™re just allowing more UV light to come into our eyes.Â Â Such unprotected exposure to the sun can potentially damage the retina and affect our vision in the long term.
Hence, for adequate protection,Â buy sunglasses thatÂ are labeled as “UV 400” whichÂ block all light rays with wavelengths up to 400 nanometers and protect you from 99 percent to 100 percent of both UVA and UVB light. Also, the larger the frame, the greater the protectionÂ thusÂ you may want to consider wraparound sunglasses to prevent harmful UV rays from entering around the frame.
You may also take comfort in the fact thatÂ while expensive sunglasses are usually high quality,Â cheaper sunglassesÂ can still provide adequate protection from UV light and are free of distortions.
AndÂ like sunscreen, sunglasses should be worn all year round, rain or shine since UV rays are alwayÂ present.Â
Hey, they makeÂ greatÂ fashion accessory anyway!