Being sunglasses fans, we’re interested in how the eye works and what sunglasses can do to promote eye health. According to the NHS, Cataracts affect around one in three people over the age of 65. There are many factors that can influence their development including heredity and age. Here, we look at what you can do about to help prevent them.
Understanding the basics
The eye’s lens sits between the iris and the pupil. It works by focusing light onto the retina – which sits at the back of the eye. The lens is made of protein and water and has the power to adjust the eye’s focus so we can see things like print close up and the horizon in the distance. The protein in the lens may begin to stick together and form a cloud known as a cataract. Cataracts can grow and over time and cloud more of the lens making it increasingly difficult to see clearly.
What you can do about it
According to the Eyecare Trust, diet and medication can play a role in the development of cataracts. But there’s another factor that can also make a difference: UV light. They also say that repeated exposure to damaging UV rays can encourage the formation of cataracts.
That’s where high-quality sunglasses, and even prescription sunglasses for people who have eyesight problems come in. Ultrasight™ lenses were developed exclusively for Polaroid Sunglasses and are made of nine functional elements. At the core of the lens, is the polarizing light filter. UV light absorbers are bonded to both sides of the filter. These block all harmful UVA, UVB and UVC light rays. Shock absorbing layers are then fused to both sides of the UV absorbers, making the lens light, flexible and impact resistant. A scratch resistant layer on both the outer surfaces completes the lens structure.
Companies have put a lot of research into the development of polarized lenses, and they want people to enjoy the benefits.