Optical Prism October 2017 | Page 17

The Canadian Association of Optometrists says human exposure to blue light is on the rise. Almost all blue light reaches the retina and too much exposure can cause sleep problems, eye strain, headaches, irritability as well as more serious problems like age-related macular degeneration and cataracts. “A child’s crystalline lens is more transparent to short wavelengths – such as blue light – than that of an adult, making children more sensitive to blue light effects than adults,” says the association, which is the national voice of optometry in Canada and represents about 85 per cent of all Canadian optometrists. A recent report by the Vision Council found that 76.5 per cent of people reported their children, under the age of 18, get more than two hours of screen time each day. And there are indications that those numbers are on the rise. To protect children's vision, several optical companies have developed lenses that can block or filter out all or a portion of ultra-violet and/ or blue light. Recently, Nikon launched a new single-vision lens that provides full protection from both UV and blue light. Juveo lenses, which Nikon says were inspired by the importance of safeguarding children's visual health, are exclusively available with both Transitions and SeeCoat Blue UV coating. “We are always mindful about the importance of visual protection, particularly children’s visual health. It’s imperative to shine light on the fact that even though kids spend more time outdoors than adults, their eyes are most often not protected from UV rays or blue light. All kids and teenagers should be protected, even those who don’t need vision correction,” says Chantal Gravel, product marketing manager at Nikon Optical Canada. “With Juveo, we are offering a simple, easy and practical solution for parents and eye care profes- sionals to protect kid’s visual health.” The lenses allow kids to wear the same glasses both indoors and out, thanks to the Transitions technology. Optical Prism | October 2017 17