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.

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 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 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.

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.

I'm not a fan of gushing emotions. I think that probably shows in all of the characters I play. I try to reinterpret the characters in my style.

What we are effectively doing, I say this to the young people of America whom my colleagues represent, is leaving our children and grandchildren the tab for fighting a war, letting them pay for the lion's share of it by simply adding it to the national debt.

You gotta be in the now to create and experience the wow!

The right to life is guaranteed to all Americans in the Declaration of Independence, and ensuring this is upheld is the Constitutional duty of all members of Congress.

If I, taking care of everyone's interests, also take care of my own, you can't talk about a conflict of interest.

When kids tried to pick on me, I always had one line to shoot them down with: 'I make more money in a week than you'll make in your entire life.' Which probably wasn't true, but they thought it was.

It's all a question of imagination. Our responsibility begins with the power to imagine.

Purity in person and in morals is true godliness.

Ballet costumes are easier that opera because they are designed for movement.

I am concerned, rather, that there should not be more things dreamt of in my philosophy than there actually are in heaven and earth.

Through music I either tame my demons or unleash them and allow them to be what they are. I don't want the music to be about provocation, I want the music to bring you to a place where you feel at home.

I'm the world number one, so everyone is trying to attack me and trying to speed up.

I came up in gospel.

Collaboration is really important.

We are going to inherit the earth; there is not the slightest doubt about that.

Ever since the Second World War, television signals (as well as FM radio and radar) have served as Homo sapiens' emissaries into deep space. High-frequency, high-power broadcasts have filled an Earth-centered bubble more than 60 light-years in radius with signals.

If you're not the brightest or if you're not great at sports, or if you're not artistic, then you've got to find a way to make your mark; otherwise you're just this tiny little insignificant dot. I didn't want to be insignificant, so I made people laugh.

I've always believed that there are funny people everywhere, but they're just not comedians. In fact, some of my best comedic inspirations were not professional entertainers.

You are doing better than you think you are.

U2 are a great band; they've given us an unbelievable body of work, and all of us musicians owe them at least something. I can honestly say that every time I have played the Red Rocks Amphitheatre in Colorado, as soon as my drums are set up, I go into the beat of 'Sunday Bloody Sunday.'

My parents spent an awful lot of money sending me to the best possible schools, and I came out of my exams and thought, 'I don't really want to do a degree.' I did philosophy with the Jesuits for about a year, and then I joined a bank. While I was there, I saw an ad in an Irish paper for radio announcers.

A right judgment draws us a profit from all things we see.

The democrats think that as they are equal they ought to be equal in all things.

I started promoting clubs when I was 15. 1 was doing what is considered the normal collegiate stuff when I was a lot younger. I was holding my own, but doing a lot of crazy things.