The Basic Functions Of Sunglasses

UV rays can damage the cornea and retina, and good Sunglasses can completely eliminate them.

When the eye receives too much light, it naturally contracts the iris. Once the iris has contracted to its limit, then people need to squint.

If there is still too much light, such as sunlight reflected off snow, it can damage the retina. Good sunglasses can filter out up to 97 percent of the light entering the eye to avoid damage.

Certain surfaces, such as water, reflect a lot of light, and the resulting bright spots can confuse the view or hide objects. Good sunglasses can completely eliminate this glare using polarizing technology, which we'll discuss later.

Some frequencies blur the eye, while others enhance contrast. Choose the right color for your sunglasses to make them look better in certain circumstances.