computer vision

Computer Lenses – Blue Light & Digital Eye Strain

Can Too Much Blue Light Hurt My Eyes?

When people think of workplace dangers to the eyes, it is usually machinery, chemicals or construction materials that come to mind. However, a growing danger to the eyes is one that may be less obvious – exposure to blue light from digital devices, television and computer screens and artificial lighting.

While the long-term effects of blue light or high-energy visible (HEV) light emission are not yet fully known, what is known is that blue light is a cause of computer vision syndrome (CVS) and sleep disruptions. 60% of people spend more than 6 hours a day in front of a digital device and 70% of adults report some symptoms of computer vision syndrome (CVS) which include eyestrain, headaches, blurred or double vision, physical and mental fatigue, dry or watery eyes, difficulty focusing, sensitivity to light, or neck, shoulder or back pain (caused by compromised posture to adjust to vision difficulty). Most people do nothing to ease their discomfort from these symptoms because they are not aware of the cause.

In its natural form, blue light from the sun is actually beneficial to your body by helping to regulate your natural sleep and wake cycles – also known as your circadian rhythm. It can also boost your mood, alertness and overall feeling of well-being. However, prolonged exposure to artificial sources of blue light, such as that found in electronic devices, television and energy-efficient fluorescent and LED lights, has been shown to cause disruptions in the circadian rhythm as well as more serious vision problems. Researchers at Harvard University have linked blue light with damage to the retina at the back of your eyes, indicating that long-term exposure to blue light could be linked to age-related macular degeneration (AMD) and possibly other serious health and vision problems.

Since 43% of adults work at jobs that require prolonged use of a computer, tablet or other digital monitor, blue light is an increasingly serious threat to your vision, health and productivity. There are a number of options for reducing your exposure to blue light which include computer glasses, specialized lenses and protective coatings. Speak to our eye care professionals to determine which option is best for you.

Single Vision Computer Glasses

Provide the optimum lens power and field of view for viewing your computer screen without straining or leaning in to reduce symptoms of CVS. These are ideal for when the computer is at a fixed working distance, and work well if the user needs to view multiple screens at the same working distance.

Office Lenses or Progressive Lenses

No-line multifocal eyewear that can be made to correct near, intermediate and some distance vision with a larger intermediate zone for computer vision if indicated. Perfect for those with presbyopia which is the gradual loss of focusing ability that occurs naturally with age. Office lenses work like progressive lenses but provide a wider field of view for intermediate (1-3 m) viewing distance and near working distance (about 40 cm).

Blue-Blocking Lenses

Definitely recommended for this electronic age, blue-blocking lenses block blue light emitted from computer screens that is associated with glare, eye strain and possible sleep disturbances.
Anti-glare and filtering coatings (treatments): Eliminate reflections from the surfaces of your lens to reduce eye strain and discomfort from glare. Some coatings can also block blue light emitted from computer screens.

While all of these are good options for protecting your eyes, the 20/20/20 rule still applies – after every 20 minutes of near tasks, look at something beyond 20 feet away for at least 20 seconds…it’s a good time to stretch the rest of the body too.

Additionally, diets high in lutein and zeaxanthin, which are carotenoids found in dark, leafy green vegetables like spinach and kale are protective to blue light damage.

A note about children and blue light:

Children are more prone to blue light damage than adults because the natural lenses in their eyes are so clear that blue light passes easily through to reach the retina. Adults are somewhat less prone since the older we get our natural lenses to become more cloudy and blue light does not pass through quite as easily. Pediatricians recommend that young children under the age of two should get ZERO screen time. They have much better ways of developing their eyesight with activities requiring hand-eye coordination with high contrast physical objects.

Technology is advancing the world, and our jobs and daily lives will only continue to rely upon it. Don’t let technology get in the way of your vision and your health. Ask us about the best solution for you.

At Aspen Eye Care, we put your family’s needs first. Talk to us about how we can help you maintain a healthy vision. Call us today: 587-400-2101 or to request an appointment to see one of our Sherwood Park eye doctors.

3 Ways Diabetes Can Affect Your Vision and Eyes

Did you know that people with diabetes are 20 times more likely to get eye diseases than those without it? There are three major eye conditions that diabetics are at risk for developing: cataracts, glaucoma, and diabetic retinopathy. To prevent these sight-threatening diseases, it’s important to control your blood sugar level and have your eyes checked at least once a year by an eye doctor.

But First, What Is Diabetes?

Diabetes is a disease that is associated with high blood glucose levels. Insulin, a hormone produced by the pancreas, helps our cells get energy from the sugars we eat. Diabetes develops when the body doesn’t produce or respond to insulin effectively, leaving too much sugar in the blood stream instead. Over time, diabetes can lead to potentially irreversible ocular damage and poor eyesight. However, by taking care of your blood sugar levels and your eyes, you can prevent vision loss.

Annual eye exams are recommended for everyone, but routine screenings are even more important for diabetics. Eye doctors may send diabetic eye health reports to a patient’s primary care physician or internist to adjust medication as needed to prevent complications.

What’s the Link Between Vision and Diabetes?

Blurred vision or fluctuating eyesight clarity is often one of the first noticeable signs that diabetes has begun to affect your eyes. Sometimes, fluid leaking into the eye causes the lens to swell and change shape. This, in turn, makes it difficult for the eyes to focus, resulting in fuzzy vision. Such symptoms can indicate that an eye disease is developing, or may simply be due to imbalanced blood sugar levels which can be rectified by getting your blood sugar back to healthy levels.

If you start to notice blurry vision, make an appointment with Dr. Aleem Bandali as soon as possible.

The 3 Ways Diabetes Impacts Vision

Cataracts

While cataracts are extremely common and a part of the natural aging process, those with diabetes tend to develop cataracts earlier in life. Characterized by a clouding or fogging of the lens within the eye, cataracts impede light from entering the eye, causing blurred vision and glares. The best treatment is cataract surgery, which is very safe and effective.

Glaucoma

Glaucoma refers to a group of eye diseases characterized by optic nerve damage. Since it tends to impact peripheral vision first, glaucoma often goes unnoticed until significant damage has occurred. However, routine glaucoma screenings can detect warning signs; early treatment can prevent disease progression and vision loss.

Although there is no true cure for glaucoma, most glaucoma patients successfully manage it with special eye drops, medication, and on occasion, laser treatment or other surgery. The earlier glaucoma is diagnosed and managed, the better the outcome.

Diabetic Retinopathy

Diabetic retinopathy occurs when the small blood vessels on your retina (capillaries) become weakened and then balloon (microaneurysm) due to poorly controlled blood sugar levels. The resulting poor blood circulation in the back of the eye causes more abnormal blood vessels to grow, which also bleed or leak fluid, and can lead to scar tissue, retinal detachment and even blindness, over time.

Often there are no symptoms until the advanced stages of diabetic retinopathy, where patients may begin to see spots and missing patches in their vision. Retinopathy can be treated through surgery and eye injections, but the best way to prevent this disease from progressing is to regularly have your eyes screened.

The good news is that diabetic eye disease can often be prevented with early detection, proper management of your diabetes and regular diabetic eye exams. Contact Aspen Eye Care in Sherwood Park to set up your eye doctor’s appointment today.

Can Contact Lenses Give Me 20/20 Vision?

Before our eye doctor answers the question about whether or not contacts can help you achieve 20/20 vision, let’s discuss what those numbers mean. Everyone talks about 20/20 vision all the time, but what is it exactly? Our optometrist at your nearby eye care center in Sherwood Park can answer any questions you may have.

What’s the meaning of 20/20?

In general, “normal eyesight” is referred to as 20/20 vision. These numbers describe what you should see when standing 20 feet away from an eye chart. Accordingly, if you are diagnosed with 20/40 vision, it means that when you stand 20 feet away from the same eye chart, you can only see the details that a person with normal eyesight sees at 40 feet. That makes your vision weaker than average. In contrast, if you have 20/10 vision, it means that if you stand 20 feet away, you can see details that most people only see at 10 feet – which is better than the normal standards for vision.

How sharp will I be able to see with contact lenses?

At our Sherwood Park eye clinic, we aim to fit you with contact lenses that give 20/20 vision. Our experienced, skilled optometrist will check your visual acuity with the help of a basic Snellen testing chart and advanced diagnostics. We’ll figure out your precise vision prescription for contact lenses, giving you 20/20 vision or close to it. Our eye doctor is dedicated to making sure you enjoy the sharpest vision possible for your lifestyle needs!

Is it possible to see better than 20/20?

Yes, it is certainly possible. But the accepted gold standard is to correct human vision conditions with lens powers that bring your eyesight to the average norm of 20/20. On the other hand, if you are an eagle (and our eye doctor welcomes all eagles to visit us at Aspen Eye Care when flying through Sherwood Park), we can treat you with prescription contact lenses to restore the standard 20/5 vision that gives eagles a fine bird’s eye view of the world!)

Contact lenses vs. eyeglasses – do they give the same vision quality?

As far as vision quality goes, the primary advantage of contact lenses is that they offer more natural vision. Because they sit directly on your eye, they bend light in a way that’s closer to the requirements of your vision prescription. In addition:

Contacts also move along with your eyes, and no bulky frames block you from having clear peripheral vision – without needing to turn your head. (This is a big plus for people who play sports!)
Contact lenses don’t fog up when it’s cold outside or get wet when it’s rainy, so you have sharp vision in all weather conditions.
If you have astigmatism, our Sherwood Park eye doctor may recommend rigid gas permeable contact lenses, because they can give more acute vision than soft lenses and eyeglasses.

What’s better for me – contacts or glasses?

If your eyes are generally healthy, the choice between glasses and contact lenses is yours to make. Like everything, there are pros and cons to each type of vision correction. How should you make this decision? It mainly comes down to lifestyle and personal preferences. At our Sherwood Park eye care center, we’ll discuss your daily activities with you to help determine whether eyeglasses or contact lenses are most suitable.

Looking for 20/20 vision with contact lenses? Visit our Sherwood Park eye doctor near you!

To see the best that you can see, book an eye exam at Aspen Eye Care. Our optometrist will evaluate your vision and eye health to make sure you are a good candidate for contact lenses. If you’re interested in getting rid of your eyewear altogether, we also provide primary eye care and surgery co-management services.

At Aspen Eye Care, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 587-400-2101 or book an appointment online to see one of our Sherwood Park eye doctors.

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It’s Time to Talk About Blue Light

Blue light. Do you know what it is? Do you know where it comes from, or how it can be harmful to your eyes? If you don’t know the answers to these questions, you are not alone, yet it is important that you become aware to protect your eyes for now and the years to come.

The reason blue light is suddenly becoming a big issue is because other than the sun, which is the biggest source of blue light, a significant source of blue light emission comes from digital devices and artificial lighting. As our world becomes increasingly digital – think: HD televisions, LED lights, computers, smartphones, tablets – we are all exposing our eyes to more and more amounts of blue light than ever before. And we are only beginning to understand the long term effects this has on our bodies and our eyes.

One of the biggest issues with blue light is that whether it is through work or leisure, people are exposed to screens at a close range for a large portion of the day. A survey from the Vision Council entitled, “Blue Light Exposure and Digital Eye Strain” recently showed that 87% of respondents used digital devices for more than two hours a day and over 52% regularly used two digital devices as the same time. This shift has drastically increased exposure and the number of symptoms that are reported. To date, research has shown that there are a number of ways blue light can impact your eyes including digital eye strain, sleep disturbances and retina damage that can lead to long term problems including serious eye diseases.

What You Need to Know About Your Vision

Digital eye strain is a condition that is characterized by dry, sore, tired or burning eyes, eye fatigue and sensitivity to light. It can also cause blurred or double vision, headaches, back, neck and shoulder aches and difficulty focusing or concentrating. These symptoms are most common in individuals that sit in front of the computer for two or more hours a day.

Studies show that exposure to blue light right before bedtime can cause disruptions in sleep and wakefulness because it causes a shift in the levels of melatonin, a hormone which affects your circadian rhythm and therefore your sleep patterns. So if you are using your smartphone to wind down in bed, put it down and dust off an old hardcover book!

Retina damage has been found to be a possible result of long term blue light exposure causing damage to the retinal cells in the eye which are responsible for clear vision. There has been evidence that this type of damage can lead to age-related macular degeneration (AMD) and cataracts later in life. In certain cases, your doctor might recommend Lutein and Zeaxanthin nutritional supplements to protect the macula from blue light damage.

Despite these risks, few people are taking action to protect their eyes from blue light. A recent study from Transitions Optical, The 2017 Employee Perceptions of Vision Benefits Survey, showed that there is also a significant generational difference in knowledge, habits, and attitude regarding blue light with millennials being more aware and concerned about the health effects it has on their eyes. Millennials are more likely to request prescription eyewear that has blue light protection and to know whether their current pair has that extra coverage. However, even the millennial generation is significantly lacking in awareness and prevention.

Make an Eye Exam Appointment Near You

The best way to gain awareness of and protection against blue light is to speak to your eye doctor. There are a number of ways you can protect your eyes which include computer glasses, blue light lens filters, or even blue light filter screen protectors or apps that reverse screen colours for those that don’t use prescription eyewear. Each individual can find the best solution based on lifestyle, work environment and personal comfort. The most important takeaway is that you understand that blue light is an issue, take responsibility for your eye health and speak to your eye doctor about the best blue light solutions for you and your family.

At Aspen Eye Care, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 587-400-2101 or <a href=”/contact-us/appointment-request-page/” rel=”noopener nofollow noreferrer”>to request an appointment</a> to see one of our Sherwood Park eye doctors.