Blue light – and the serious harm it can do to eye health – is the subject of IADSA’s latest Mind the Gap resource
The Dark Side of Blue Light explores how our exposure to blue light has surged as a result of the increased use of smartphones, computer monitors and LED lighting.
For example, it is estimated that we now spend an average of 3 hours and 15 minutes a day looking at our phones – nearly 50 days every year.
Blue light is more energy intense than other types of light, which means it can penetrate deep into the eye and, with time, cause irreversible degenerative conditions that may result in blurred vision.
Until now, the irreversible degeneration of macular health has been most likely to start after the age of 50. Worryingly, however, there is evidence emerging that growing numbers of people are being impacted in their 40s.
There is concern that greater exposure to blue light from smart devices and energy efficient lighting is to blame.
IADSA’s new resource explains that a daily intake of 10 mg of lutein and 2 mg of zeaxanthin can help to maintain macular health.
However, these levels can be difficult to obtain from the diet. Food supplements offer an alternative source, with most of the lutein and zeaxanthin used in supplements derived from yellow marigold flowers, which are rich in both of these antioxidants.
The Dark Side of Blue Light was developed by IADSA in association with the US Council for Responsible Nutrition (CRN).
US CRN President and CEO, Steve Mister, commented: “Smartphones, computers and energy efficient LED lighting have enriched our lives and delivered many benefits to society. The flipside is a detrimental impact on eye health. With studies showing that 10 mg of lutein and 2 mg of zeaxanthin can help to maintain eye health, including these antioxidants in the diet is a sensible step to take.”
Cynthia Rousselot, Director of Technical and Regulatory Affairs at IADSA, added: “Exposure to blue light has increased for people of all ages, which means eye health is no longer a priority only for the elderly. Our new Mind the Gap story brings this issue to life in an engaging and impactful way.”