Light, sight and posture

Discover life-changing Serious Lights. Driven by an inventor’s passion and endorsed by over 500 opticians.

The stresses and strains of modern life

Were you aware that there is a relationship between your posture and your eyesight? And that adding a light source into the equation adds a new level of complexity?

It all starts with evolutionary theory. Over millennia, we have developed a unique ability to interact with our environment from an upright position. Humans alone keep their bodies vertical to the ground and eyes parallel to the horizon. We are by nature viewing things from an elevated position, and our natural “stress-free” upright posture makes allowance for this.

Our eyes contribute to postural control by delivering information from the retina to different areas in the brain that allow for object identification and movement control. It is no coincidence therefore that many people who suffer from visual impairments also develop balance and stability issues. And what about modern technology? It is estimated that we spend 2-4 hours each day reading looking at our mobile phones while standing. Simply put, we weren’t designed to do this, and research has shown that tilting our heads at a 60 degree angle adds 60lbs of pressure on your cervical spine (i.e. above the shoulders). For context, 60lbs is the weight of an average 7-year-old.

We experience similar issues while seated, with many of us experiencing the pain of “tech neck” as we position ourselves awkwardly in front of our PCs, or strain to look downwards at tablets and e-readers. As Dr Kenneth Hansraj, chief of spine surgery at New York Spine Surgery and Rehabilitation Medicine, writes:

“The weight seen by the spine dramatically increases when flexing the head forward at varying degrees. Loss of the natural curve of the cervical spine leads to incrementally increased stresses about the cervical spine. These stresses may lead to early wear, tear, degeneration and possibly surgeries.”

Light matters

And what about light? Many of us read in the evening under household lights, and as a consequence, we experience eyestrain caused by inadequate lighting. The phenomenon of household lighting is barely 100 years old, and our eyes are being asked to deal with a radical shift from their natural light requirements. We are only just beginning to understand the consequences of this. The move to LED, driven largely by energy-saving considerations, has illuminated huge swathes of our planet, and this has this rocked our Circadian rhythms. In addition, research has shown us that the blue spike which occurs in LED bulbs not only keeps us awake when we want to sleep, scientists now say it could also increase our risk of macular degeneration and cancer.

What to look for to increase your reading comfort

So what’s the answer? Firstly, try to hold your mobile or tablet higher when you are standing in order to relieve the pressure on your spine. Secondly, spend some time looking for a quality chair which will support you in the best position for PC work or for reading.  Finally, choose a light that replicates the daylight spectrum as closely as possible to avoid eyestrain. And make sure you can position it for maximum comfort (best is over your shoulder). Importantly, try to source a task light with technology that does not contain the dreaded “blue spike”. The best in the category is the Serious High Definition Light, with bespoke Daylight Wavelength TechnologyTM, the lifetime’s work of inventor Alex Pratt OBE. Endorsed by over 500 independent opticians, a Serious Light offers a truly life-changing reading experience.

See the difference for yourself risk-free

The only way to experience the superiority of a Serious Light is to try one. Which is exactly what you can do with the Serious risk-free 30 day trial.  98 out of every 100 people who try a Serious Light decide to keep it. Why not give one a go for yourself?


Have you got a health question?

We've teamed up with AXA PPP healthcare to bring you articles, information and tips from their clinical teams on a wide range of health topics. And if you have a question of your own, their, "Ask the Expert" service allows you to ask the team of friendly, experienced nurses, pharmacists and midwives about any health topic and they'll get back to you with an answer as soon as they’re able.* So if you have something that’s been bothering you, whether it concerns you or someone close to you, don’t hesitate to get in touch.

Click below to submit your query online.


* Nurses are available 24/7, 365 days a year. Midwives and pharmacists are available Monday to Friday, 8am to 8pm; Saturday, 8am to 4pm; and Sunday, 8am to 12pm.
Actual response time will depend on the nature of your enquiry and availability of appropriately qualified experts but the team will always aim to get back to you within 24 hours.
Please note that our Expert Help services are there to offer health information and support. They do not diagnose or prescribe, and are not intended to be a substitute for professional medical advice given in the context of an individual consultation.


Leave a Comment!

Not a member?

You need to be a member to interact with Silversurfers. Joining is free and simple to do. Click the button below to join today!

Click here if you have forgotten your password

Community Terms & Conditions

Content standards

These content standards apply to any and all material which you contribute to our site (contributions), and to any interactive services associated with it.

You must comply with the spirit of the following standards as well as the letter. The standards apply to each part of any contribution as well as to its whole.

Contributions must:

be accurate (where they state facts); be genuinely held (where they state opinions); and comply with applicable law in the UK and in any country from which they are posted.

Contributions must not:

contain any material which is defamatory of any person; or contain any material which is obscene, offensive, hateful or inflammatory; or promote sexually explicit material; or promote violence; promote discrimination based on race, sex, religion, nationality, disability, sexual orientation or age; or infringe any copyright, database right or trade mark of any other person; or be likely to deceive any person; or be made in breach of any legal duty owed to a third party, such as a contractual duty or a duty of confidence; or promote any illegal activity; or be threatening, abuse or invade another’s privacy, or cause annoyance, inconvenience or needless anxiety; or be likely to harass, upset, embarrass, alarm or annoy any other person; or be used to impersonate any person, or to misrepresent your identity or affiliation with any person; or give the impression that they emanate from us, if this is not the case; or advocate, promote or assist any unlawful act such as (by way of example only) copyright infringement or computer misuse.

Nurturing a safe environment

Our Silversurfers community is designed to foster friendships, based on trust, honesty, integrity and loyalty and is underpinned by these values.

We don't tolerate swearing, and reserve the right to remove any posts which we feel may offend others... let's keep it friendly!