Blue light does affect the body’s circadian rhythm, our natural wake and sleep cycle. During the day, blue light wakes us up and stimulates us. But too much blue light exposure late at night from your phone, tablet or computer can make it harder to get to sleep.

Blue Light is the specific section of the visible light spectrum that can have harmful effects to our eyes and sleep.

Artificial blue light is emitted from LED lighting and from digital devices. Our close proximity to the device when viewing, especially over long periods of time, means that the harmful blue light can affect us and our children’s wellbeing.

The rays of the sun may appear to be colorless, but they're actually made up of red, blue, orange, yellow, green and violet hues. Red and orange are located at one end of the visible light spectrum, while blue and violet are at the other.

Red rays have long wavelengths, but produce less energy. At the other end of the spectrum, the wavelengths are shorter, but the energy is stronger. Because blue rays emit higher amounts of energy, they're more likely to affect your eyes.

Most of your exposure to blue light comes from the sun, but you can't avoid exposure simply by staying indoors. In addition to computer monitors and smartphones, blue light is produced by tablets, LED and fluorescent lights, LED light from TVs and compact fluorescent light bulbs.

Although blue light plays an important role in maintaining the sleep/wake cycle, regulating your mood and keeping your memory sharp, it may harm your eyes.

Long exposure to blue light may have been responsible for your symptoms. Blue light lowers the contrast on screens, causing the condition. Other factors that can contribute to eyestrain include poor lighting, failing to take regular breaks, less frequent blinking and dry air.

Long-term exposure to blue light may increase your risk of developing age-related macular degeneration (AMD). AMD occurs when the macula, the area of the retina responsible for central vision, is damaged.

It is known that light exposure suppresses melatonin secretion. Melatonin is a hormone which can influence circadian rhythms. Lower melatonin levels may explain the preliminary evidence of links to cancer.

Fluorescent light bulbs and LED lights do provide more energy efficiency than traditional incandescent bulbs. They also give off more blue light. Incandescent lights do produce some blue light, although less than most of the fluorescent light bulbs available.

During the two to three hours right before bed, avoid viewing bright screens.

Wear blue-blocking glasses or download an app to filter blue and green wavelength at night. This will help those that need to use electronic devices at night and individuals working night shifts.

Red light has the least influence on the circadian rhythm. Consider using dim red lights in bedrooms.

Add screen filters to computer screens, tablets and smart phones to reduce blue light emissions.

Use computer glasses that have yellow-tinted lenses that increase contrast and help block blue light.

Wear anti-reflective lenses to block blue light from digital devices and the sun.

Consider choosing an Intraocular lens (IOL) that protects eyes from blue light. This will replace a cloudy lens during cataract surgery.

For children, especially from birth to age three, the crystal lenses in their eyes are not fully developed. So it goes straight through, it causes a lot more damage in children’s eyes than it does in adults.

Blue light from computer screens and digital devices can decrease contrast leading to digital eyestrain. Fatigue, dry eyes, bad lighting, or how you sit in front of the computer can cause eyestrain. Symptoms of eyestrain include sore or irritated eyes and difficulty focusing.

Studies suggest that continued exposure to blue light over time could lead to damaged retinal cells. This can cause vision problems like age-related macular degeneration.

After cataract surgery, the cloudy lens will be replaced with an intraocular lens (IOL). The lens naturally protects the eye from almost all ultraviolet light and some blue light. There are types of IOL that can protect the eye and retina from blue light.

Screen filters are available for smart phones, tablets, and computer screens. They decrease the amount of blue light given off from these devices that could reach the retina in our eyes.

Because I'm just an ordinary person that did some extraordinary things.

Be consistent with what you believe and do. Persist and insist that you will do it till it's done and done well.

I know exactly what I'm doing on the ice, and I'm in my element.

Losing one grounds you a bit. I learned a lot after losing the title in 2009, learned that I was probably too intense that year, and when I didn't win, I just felt horrible.

I understand personally that it is frustrating to lose presidential elections by narrow margins.

If you want to live your life in a creative way, as an artist, you have to not look back too much. You have to be willing to take whatever you've done and whoever you were and throw them away.

Awkwardness gives me great comfort. I've never been cool, but I've felt cool. I've been in the cool place, but I wasn't really cool - I was trying to pass for hip or cool. It's the awkwardness that's nice.

The highest achievers in the world have all succeeded because they mapped out their visions.

Software is usually accompanied by documentation in the form of big fat scary manuals that nobody ever reads. In fact, for the past five years most of the manuals shipped with software products have actually been copies of Stephen King's The Stand with new covers pasted on.

What I wanted to do was to paint sunlight on the side of a house.

I think something that's very relevant in real life and that they don't portray enough on TV is that when you think 'Christian,' you think 'goody two shoes' - they have to look a certain way and do certain things - and it's just not true.

If you look right from the beginning of the season I've been very competitive.

If there was an earthquake in Berlin the police would take charge of it and conduct it in that sort of orderly way that would make you think it was a prayer meeting.

My novels about medieval Wales were set in unexplored terrain; my readers did not know what lay around every bend in the road.

When you tax capital gains income, you don't help the economy, you hurt the economy, which is why President Kennedy, President Reagan, President Clinton and President Bush all believed we should have a lower rate for capital gains.

I have a lot of fun writing for artists, but I'm learning to apply that fun to myself.

Whatever in creation exists without my knowledge exists without my consent.

Casey Kasem not only played the music of the stars, he also reached the sunniest-sounding celebrity on his very own. Listening to him on the radio, you could hear America smiling.

I'm an anti-industrial kind of guy.

Restaurants get you in with food to sell you liquor; religions get you in with belief to sell you rules.

Cease to inquire what the future has in store, and take as a gift whatever the day brings forth.

A mother s joy begins when new life is stirring inside when a tiny heartbeat is heard for the very first time and a playful kick reminds her that she is never alone.

Any unveiling is also veiling. No matter how transparent our governments want to be, governments will be selectively transparent.

Don't ever promise more than you can deliver, but always deliver more than you promise.