A common fault novice drivers make is not taking up the correct position on approach to emerge right, which is a fail on the driving test.

In fact, they’re only slightly longer and less powerful than UV waves, which are too short for people to see with the naked eye. Health experts have warned against the harmful effects of UV rays, which can damage your skin and your eyes.

Blue light scatters more easily than most other visible light. This may make it difficult for your eye to focus when receiving blue light. Instead, your eye may digest blue light as poorly focused visual static. This reduction in contrast may make it more difficult for your eye to process blue light, potentially contributing to eyestrain.

If you see a rectangular sign then it’s most likely a directional sign. On a motorway these will have a blue background, and on a primary road they’ll have a green background.

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Nevertheless, some eye health experts have expressed concern about exposure to blue light from backlit digital screens and devices. This is because people spend so much time using them at such a close range.

A small 2018 study has shown that exposure to blue light can perk up your reaction time and stimulate alertness when you’re not at your peak performance time of day.

Participants in a small 2017 study who had a 30-minute blue light “washout” period performed better on verbal memory and memory consolidation tasks afterward. Study participants who had an amber light “washout” didn’t perform as well.

Computer and laptop screens, flat-screen televisions, cell phones, and tablets all use LED technologies with high amounts of blue light.

The UK is home to plenty of narrow roads (especially in more rural areas), and this sign is useful to make you aware that the road should be approached slowly. Drivers should have an awareness of the width of their car, especially when operating larger vehicles. You don’t want to clip a door mirror!

Blue light, like other colors of visible light, is all around you. The sun emits blue light. So do fluorescent and incandescent light bulbs. Human beings are exposed to more blue light than ever because of the widespread use of devices that rely on light-emitting diode (LED) technology.

Blue light therapy is now one of the go-to treatments to relieve seasonal depression. Researchers have found that it’s also an effective treatment for depression that isn’t seasonal, especially when combined with antidepressant medications.

The result is that you lose the ability to see the center of your field of vision. You may still be able to see things on the periphery. But details and objects in the center of your sight lines may become blurry and, over time, more difficult to see.

At the end of the day, when light from the setting sun travels a longer distance to your eye, much of the blue light will have dissipated by the time the sunlight reaches you. You’ll see more of the long red and gold light waves. Voilà: a stunning sunset.

Similarly, a 2018 research review also concluded that there was no evidence blue-light-blocking lenses lessened the chance that someone who has had cataract surgery would later develop macular degeneration.

Age-related macular degeneration (AMD) is the number one cause of sight loss in people over 50 years old, according to the American Academy of Ophthalmology (AAO). It happens when a structure in the back of your eye, the macula, becomes damaged as you get older.

Bus lanes can be confusing for drivers of all experience levels, and nobody wants to get a FPN or points on their licence for accidentally going into one. There are a number of different signs to abide by when it comes to bus lanes. Some lanes will be for buses and other modes of transport at all times, whereas other lanes will vary by time/day.

Those structures don’t keep out blue light. And you’re exposed to a lot of it — the natural blue light from the sun far exceeds the amount from any one device.

Eye drops, such as artificial tears, and room humidifiers are all good ways to keep your eyes from becoming too dry and irritated while you’re using blue-light-emitting devices.

Research has shown that when people use computers, laptops, and other digital devices, they tend to blink less often than normal. Fewer blinks can mean less moisture.

Most electromagnetic waves are invisible. But a small band of waves, known as visible light, can be detected by the human eye. Visible light waves vary in length from 380 nanometers (violet light) to 700 nanometers (red light).

Chances are, you’re reading this article on a device that emits blue light. With the amount of time people spend in front of screens reaching record highs, should you be concerned about the blue light streaming into your eyes?

If you see a blue panel within a green panel, then this indicates that the motorway begins at the junction ahead. If you see a white panel within a green panel, this means that a local/non-primary route begins at the junction ahead.

This warning sign is a common point of confusion for drivers. The two way traffic crosses one way road sign would be displayed on a one-way road, and means that the one-way road is coming to an end and will meet a two-way road when it does.

A 2020 study published in the Indian Journal of Ophthalmology found that during COVID-19 lockdowns, for example, 32.4 percent of the study population used a blue-light-emitting device 9 to 11 hours per day. Another 15.5 percent used the devices 12 to 14 hours per day — a sizable increase in screen time, probably due to changes in the way people work during the pandemic.

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Animal studies and lab studies have raised questions about whether blue light could speed up the process of macular degeneration. Still, eye doctors and researchers do not think there is a verifiable link between using LED or blue-light-emitting devices and AMD.

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Road signs, or ‘traffic signs’ as they’re officially known, can be confusing to new learners.  It may seem that there’s a never ending list of signs to learn in The Highway Code. You’ll pick up many of these while studying for your Driving Theory Test, but don’t worry as you’ll also learn many during your practical training.

Blue light is part of the natural electromagnetic energy spectrum. Most of your exposure to blue light is from the sun, but some health experts have raised questions about whether artificial blue light could be damaging your eyes.

Overtaking should only be done when it is completely safe to do so, because when done improperly, is a cause of accidents. Being able to overtake safely is essential to being a safe driver – your RED Driving Instructor will help you practice overtaking and build confidence for your test.

By blocking blue light in the evening, you can prevent the disruption in the natural sleep-wake cycle caused by artificial lighting and electronics.

There are a number of reasons why overtaking may not be allowed, some including poor visibility, an upcoming sharp bend, or a dual carriageway moving into a single lane.

This sign means that no overtaking is allowed. As this sign is encased in a red border it means it’s a sign giving an order – so to overtake is illegal. The sign may also be used in combination with road markings, indicated by a hard white line.

The whole light spectrum is traveling through our atmosphere — but the sky usually looks blue because blue light waves bounce and scatter off the nitrogen and oxygen particles in our atmosphere. Nitrogen and oxygen particles are perfectly formed to deflect blue light.

Traffic signs can be broken down into the following five categories, which should help you identify them and assess how to read them.

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Squinting at screens for long periods isn’t recommended for the overall health of your eyes. If you wear prescription eyeglasses to correct your vision, make sure you’re wearing a prescription intended for the distance between your eyes and your screen — ideally an arm’s length away. Most glasses are formulated for longer distances.

While current research indicates that blue light from computer screens and handheld devices probably does not pose a serious risk to your eyes, there are some other risks to consider.

Failing your test really isn’t the end of the world. We all have bad days, and sometimes nerves can get the better of us. You’ll be better prepared next time around because you already know what it’s like to sit the test.

Getting to know your road signs is a fundamental part of learning to drive, so to help you on your way, we’ve picked out a few that often leave drivers looking confused!

The no stopping sign may also be accompanied by road markings (double yellow lines) to indicate that you shouldn’t stop, however this will not always be the case, i.e on a country road.

A small 2015 study found that when people are exposed to blue light in the evening hours, their bodies don’t release as much melatonin, and their sleep cycles are delayed or disrupted.

Digital eyestrain means different things to different people, but is generally related to the focusing system of the eyes.

Blue light usually comes from the sun but also from digital screens and LED lights. Some experts believe artificial sources may be causing eye damage in humans, but animal studies are inconclusive.

Blue light can also interfere with your body’s internal sleeping and waking cycles, too, so you may want to stop using your devices before bedtime or switch to an amber-light mode.

While the jury is still out on the long-term effects of blue light on human eye health, there is more consensus around the effects blue light has on your sleep-wake cycle.

To lower the risk of eyestrain and sleep disturbance, you may want to set your screens to a “night shift” setting with warmer tones. You can also purchase blue-light-filtering screens to slip over your computer screen when you’re working at night. The filter could cut the glare of your screen.

A 2015 review has shown that blue light kills acne-causing bacteria and lowers inflammation in acne breakouts. One important note: If you’re going to try at-home blue light devices, make sure you choose one approved by the Food and Drug Administration (FDA).

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While you’re using a device that emits blue light, stop every 20 minutes to focus on objects that are around 20 feet away. Study those objects for 20 seconds before you return to your up-close viewing.

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The AAO does recommend that you protect your eyes from excessive exposure to UV rays because they are known to cause cataracts, cancer, and other kinds of eye damage. Wear sunglasses with UV protection while you’re outdoors in sunlight.

Still, there isn’t much research to confirm that blue light directly leads to eyestrain. More high quality studies are needed.

Researchers point out that because LED devices are relatively new, there aren’t any long-term studies to measure what blue light may do to your eyes over the course of your lifetime.

One recent exception: Doctors reported that a woman who used an LED face mask to improve her skin had distorted vision and a retinal lesion afterward. However, it’s difficult to say whether blue light, red light, or infrared light caused this damage because the face mask included all three.

In a 2017 case study and 2018 review, actinic keratosis and plaque psoriasis have both been improved by treatment with blue light. A 2018 study showed that blue light therapy has also been effective in treating basal cell carcinoma tumors.

Be especially aware of your road position on approach to the junction. You should stay stay well over to the left when emerging left, and well over to the right if you plan to emerge right.

The Highway Code includes many, but not all of the road signs in use. For a comprehensive list of all UK road signs, check out ‘Know Your Traffic Signs’, which is available at all good bookstores.

Light sensors in your eyes and even in your skin can perceive the difference between the intense blue light waves of bright daylight and the warmer, redder tones that signal the day is ending. When the light around you eases into those sunset shades, the sensors in your eyes prompt your body to release your body’s natural stores of melatonin, the sleep-inducing hormone.

At this point the driver will be able to join the two-way road and decide which direction to travel in. The sign is designed to alert drivers to the upcoming change in the road, so they should take care to conduct all of the necessary observations when approaching the end of the one-way street.

Drivers are often left stumped by the hundreds of roads signs to remember in the Highway Code. Here are some of the more common ones that leave drivers confused, to make sure you’re not left wondering what you’re looking at next time you’re on the road.

Do blue light glasses work? Read what the research says and learn how you can change your lifestyle and technology use to reduce blue light exposure…

Here’s our guide to the best blue-light-blocking glasses available right now, starting with some of the research that’s been done on blue light.

And 2020 research shows that they block 30 to 60 percent of blue light, though it isn’t clear whether blocking the blue will help preserve the sleep-wake cycle for those who use backlit screens before bedtime.

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Your eye is equipped with structures that protect it from some kinds of light. Your cornea and lens protect the light-sensitive retina at the back of your eye from damaging UV rays, for example.

Studies have repeatedly shown that blue-blocking glasses are effective at reducing blue light, but the AAO stops short of recommending them to protect your eyes because there isn’t enough evidence that they lower eyestrain or improve eye health.

So far, research does not appear to validate the concern about blue light eye damage. While some animal studies have shown that blue light can damage cells in the retina, eye doctors say there is little proof that blue light damages the retina of the human eye.

Some studies have shown that blue light damages cells in laboratory animals. So far, there isn’t much research that indicates blue light from digital devices and LED screens damages human eyes.

If you do stop when there is a no stopping sign, then you could face a FPN (Fixed Penalty Notice), or even a driving offence with points on your driving licence. If you see this sign, then don’t chance it! Keep driving and find somewhere safe to pull over, as it may not only be illegal to stop, but could also be dangerous.

Prolonged digital device use leads to digital eyestrain, though, so it’s a good idea to take frequent breaks if school or work involves hours of screen time.

The no stopping sign is an easy source of confusion for drivers, but actually it’s meaning is very clear. Given that it’s encased in a red circle, the sign is an order. If you see the no stopping sign, then you must NOT stop at all, for any length of time. If there are allocated waiting times displayed alongside the sign, then this will actually be a no waiting sign.

Signs giving orders can often be identified because they are mostly encased in a red circle. If there is an additional plate below the circle then this is to qualify the message of the sign.