FAQ: Computer Vision Syndrome

What is computer vision syndrome?

Computer vision syndrome, or CVS, is the discomfort or symptoms caused by focusing on a computer or technological device for a long and uninterrupted time.

Common symptoms include:

  • Headaches
  • Loss of Focus
  • Burning Eyes
  • Tired eyes
  • Red Eyes
  • Double Vision
  • Eye Twitching
  • Blurred Vision
  • Neck and Shoulder Pain

Commonly Asked Questions

What causes Computer Vision Syndrome?

Characters, when read on a computer screen, don’t have the same level of contrast and definition as printed materials. This lack of contrast makes it harder for your eyes to focus. When your eyes and brain react differently to the various characters on a computer screen than on a print, you can develop symptoms of eye strain like blurred vision or headaches.

Who is affected?

Anyone working on a computer for extended periods has an increased risk of developing computer vision syndrome. When you stare at a screen, you are forcing your eyes to focus and refocus for long periods. As a result, your eyes are using more muscles, causing fatigue and tired eyes. 

What can I do to reduce symptoms?

It’s easy! Talk to your eye doctor about their recommendations on how you can handle CVS. Your eye doctor may do a few tests to detect vision problems that may worsen your symptoms. Depending on the results, your doctor may recommend computer eyewear to protect your eyes or tips and tricks habits to reduce your symptoms. 

For example, try practicing the 20/20/20 rule when using digital devices for an extended period. Every 20 minutes, look 20 feet away for 20 seconds. This exercise gives your eyes a break from the continued work of focusing on your computer screen.

Finding a Solution

What is Computer Eyewear?

Computer eyewear are prescription glasses specifically designed for work on a computer. Generally speaking, these lenses enable you to focus better on a computer screen, which is usually at about 20in from your eyes. 

Are there Different Types of Computer Lenses?

Yes! When shopping for the right pair of computer eyewear, ask us about the different options. Computer lenses are available in both single vision and progressive lens options to fit your vision needs. 

I don’t have Computer Vision Syndrome now. Should I still look into computer eyeglasses?

Yes. Even though you may not have computer vision syndrome now, you can still develop symptoms down the road. Many individuals experience reduced productivity and accuracy when working behind a screen, even without vision problems.

Do you have more questions about computer vision syndrome and the possible solutions that you can take? Contact our office today and ask us your vision questions!

What is Colorblindness?

Colorblindness is an interesting thing to most people because we wonder what it must be like to not distinguish some colors—a function of vision that we take for granted. Most people can live with colorblindness because it is present as soon as they are born and many go years without realizing that they do not see a full array of colors.

Certain tasks may be difficult or impossible, but even without seeing as many distinct colors as possible, these people function fine in everyday life. Colorblind tests exist to diagnose people who have color vision deficiency, and new advancements have even created eyewear to help people see more of the colors they are missing depending on their deficiency.

The cause of color blindness usually involves faulty cones. Cones are cells in your eyes that distinguish the three wavelengths of light that we see. Light can be split into red, green, and blue for the spectrum visible to humans. Color blindness can happen because the cone cells are faulty in some way and do not show distinct colors. A person may see shades of yellow and blue, for example, but have problems distinguishing red and green. Many people believe that color blindness means seeing only in black and white, but that is far more rare than typical color blindness.

Also, color deficiency is much more common in men than women. Only up to 1% of the female population has trouble seeing various colors, where somewhere between 8-12% of the male population is color blind.

Color blindness is usually an inherited genetic deficiency with the cones, but symptoms of color blindness may also occur due to stroke, old age, or a problem with pathways from the cones to the brain where the brain can determine colors.

More and more people are able to afford relatively new technology that helps us see more distinct colors. People who are not color blind can use special glasses to see a more saturated and distinct view of colors, but those with color deficiencies are seeing some colors that they have never seen before. These special color vision glasses are a favorite subject of YouTube videos where people give their friends the gift of color and film the shocking experience.

Curious about your own color perception? Learn more about it here, and test your color vision!

Kids and Computer Vision Syndrome

Most of us remember being told not to sit too close to the TV because it would ruin our vision. Well, that may have been an exaggeration of the actual dangers of sitting too near a tube television, but new risks are at play when it comes to electronic screens and the eyes of our children.

Old tube televisions and things like handheld games relied on much different electronics and lights to power their screens in the early years. It wasn’t until much more recently that we have moved to bright, LED and plasma screens that use a lot of blue light to show unimaginably crisp images. Whereas sitting pretty close to one of those screens twenty years ago probably wasn’t a good idea, it’s likely that prolonged and extreme use of screens nowadays is more problematic.

We know that using a computer can improve school readiness and academic achievement. Children learn digital tools quickly, and have relatively little trouble using them for educational games, math, reading, and more. These things aid cognitive development when used appropriately, and will not harm your child’s vision.

The risks associated with using a digital screen come from prolonged use, improper ergonomics, and developmental problems caused by getting too much screen time instead of getting social interaction and physical activity.

Children’s eyes are more sensitive to bright light because they lack certain tints that we develop as we get older. As we age, our eyes take on a slightly yellowish tint that helps filter bright blue light. The sun is the largest source of bright blue light, but digital devices also rely on this kind of light to produce clear videos and graphics. This means that children who use a bright screen up close are naturally less protected than older people, and their eyes are more susceptible to damage. Over time, our risk for macular degeneration increases along with years of exposure to “high-energy visible light.”

When children use a digital device for long periods of time, they do not “flex” their eyes by focusing on distant objects, as well as looking in the near and intermediate fields. This causes eyestrain. Additionally, sitting for too long and making repetitive movements with hands (like clicking a mouse or controller) or sitting in a position with bad posture or an unsupported upper body can lead to problems like carpal tunnel, muscle soreness, and poor physical development. Everyone knows that kids need time to burn off energy, build gross motor skills, and strengthen their muscles and bones through exercise and play. When they get too much time sitting down while indoors, other important activities like outdoor play, conversation, spacial reasoning, and other skills suffer.

To reduce your child’s risk of computer vision syndrome:

• Limit their time on computers and devices
• Prompt them to take breaks regularly (this is a good habit for many activities)
• Make sure they are sitting in a comfortable, supported position
• Opt for anti-glare protection on their eyewear to reduce eyestrain
• Teach them to view digital screens at arm’s length and not too close

Eye Floaters, Flashers, and Spots

Eye doctors often get asked about small specs that appear to float through someone’s field of vision. Even very young people may notice on occasion a spot that appears when they look at a light, plain surface. The good news is that there is no reason to be alarmed!

Eye floaters are simply how we see differences in the gel or liquid in the back of our eyes. Typically these spots appear as specks, circles, or stringy webs that drift through our field of vision. The reason that we see them is that the human brain works with the eyes to interpret light that enters through the front of the eye. In between the light entering the front of the eye and the structures inside the eye that create visual images there is a gel-like substance called vitreous or vitreous humor.

Vitreous is generally a thicker gel in young people and begins to change as we age. Through our youth, the gel generally remains consistent. With age, vitreous dissolves and starts to turn into a thinner liquid. Because some of the gel does not thin and remains in a gel state, you may be able to see small discrepancies in the consistency of the material. These are floaters.

Floaters like this are not anything to worry about, but other types of visual anomalies have different causes and may be something more serious. If you see an occasional floater, there’s no need to see the doctor. If you suddenly see lots of floaters, or if you are seeing flashes of light, contact your eye doctor right away. Sudden appearance of many floaters could mean that the vitreous is beginning to separate from your retina. This is a type of detachment and can lead to damage to the delicate retina which may cause permanent loss of vision.

Always keep in mind that any sudden changes to your vision could be serious and should be addressed with a medical professional right away.

Eating Well for Eye Health

Everyone wants to know how eating can affect the ways our bodies function. Maybe it’s because we want even more reasons to eat healthy, or because more of us want natural ways to lower our risk for diseases and deficiencies, but the good news is that you can easily eat right for your vision!

Antioxidants
Many foods contain antioxidants. Antioxidants literally remove oxidizing agents in living organisms. These oxidizing agents may be potentially damaging to our various systems, so many people believe that foods rich in antioxidants could help lower our risk for certain illnesses.

There are many delicious foods that can help promote overall health and may be part of a plan to lower your risk for eye disease.

Vitamin C (ascorbic acid) helps with building and maintaining connective tissues in the human body. It also helps maintain collagen found in the cornea. By promoting healthy skin, bones, and circulation, you retina may be aided by vitamin C. People who have healthy levels of vitamin C in their diet are also at a lower risk of forming a cataract and vision loss from macular degeneration.

Red peppers are especially high in vitamin C, as are green peppers, strawberries, broccoli, and some citrus fruits.

Flavonoids
Many of the foods that contain vitamin C also contain flavonoids. Unlike vitamins, these substances are not necessarily required for life and crucial functions of the body, but they are generally linked with health benefits as part of an overall healthy diet.

Anthocyanins are a type of pigment and antioxidant that are considered good for your eyes because they may reduce risk of cataracts or macular degeneration. These substances are found in many berries like blueberries, cranberries, raspberries, and blackberries. You can also get anthocyanins from grapes, red cabbage, and red apples.

Fatty Acids
Many people falsely believe all fat is bad, but there are lots of healthy fats that we need in our diets. Our brains demand various kinds of fats to function properly, and healthy fats help our circulation, digestion, and even things like our outward appearance. Diets with proper omega-3 fatty acids are also very good for your eyes, and are especially important for eye development in children.

You can get these essential nutrients from foods like flaxseed, walnuts, fish, soy, and veggies like brussel sprouts and cauliflower.

Though we can’t be totally sure how much these foods help lower our risk for illnesses, there’s no doubt that a balanced diet and healthful lifestyle are important for a strong body and healthy eyes!

Using Oils to Relieve Dry Eye

Many medical professionals are aware of the benefits of adding healthy oils to our diets. Most of the fats that are essential for a healthy heart, skin, brain, and other systems come from things like fish, nuts, seeds, and vegetables. Doctors will sometimes prescribe fish oil or flaxseed oil to help improve someone’s health, but we are learning more and more about how these beneficial oils can help more than previously thought. In the case of your eyes, certain oils may aid in treatment of dry eyes.

Vision Benefits of Flaxseed and Fish Oil
Fish oil and flaxseed oil are beneficial because of the omega-3 fatty acids they include. These materials are needed to support optimal health. Flaxseed oil contains high levels of alpha-linolenic acid (ALA), an omega-3 fatty acid. ALA is converted into two different omega-3 fatty acids during digestion. These acids are called EPA and DHA and they protect cell membranes all over the body.

By adding flaxseed oil or fish oil to your diet, you may be protecting against dry eyes. These items appear to reduce dry eye symptoms, and can be used with or without eye drops to alleviate some aspects of dry eyes. Many eye doctors are recommending fish oil or flaxseed oil as part of an overall plan to treat dry eyes, or to prevent the onset or progression of symptoms.

Symptoms of dry eyes include:

• Chronic dryness
• Burning
• Stinging
• Redness
• Eye fatigue
• Sore eyes
• Light sensitivity
• Blurred vision

How to Start Taking Flaxseed and Fish Oil
If you’re looking for how to get these substances into your diet, keep in mind that many kinds of fish are high in these oils. Look for things like salmon, sardines, tilapia, and shrimp. For people who don’t like fish, or want other options, fish oil supplements are usually pretty inexpensive and easy to come by. You may ask a pharmacist for suggestions on which over the counter versions are best.

The downside of fish oil is that sometimes people will get a fishy aftertaste from the supplements. A great alternative is flaxseed oil. These supplements are readily available as well, and will provide similar benefits. Just be sure to find a brand that is cold pressed and remember to keep it refrigerated for freshness and optimal nutrient content (benefits of flaxseed oil are reduced by exposure to oxygen, light, and higher temperatures).

Flaxseed oil can get a little pricy, but you can buy flaxseeds and grind them in a coffee grinder before adding them to your diet. Use them immediately to get the full benefits!

Other Benefits
These fatty acids may help reduce your risk for several other health problems. The benefits include:
• Reduced risk of macular degeneration
• Reduced risk of cataracts
• Increased cardiovascular function
• Lower risk of heart disease
• Help maintain healthy weight

The Importance of Pediatric Eye Exams

When it comes to pediatric care, parents are usually concerned with finding the best pediatrician and following their medical advice exactly, but what about pediatric eye care? Eye care for kids is sometimes an area parents overlook because they aren’t always aware of the importance of eye health for children. Many don’t seek eye exams for their children until either the child reports having difficulty seeing at school, or the child’s grades begin to slip and parents take a closer look at why their child isn’t developing academically.

Experts recommend that children receive several eye exams before starting school. Infants should receive their first comprehensive eye exam around six months of age. Children should have an eye exam around age three, and again when they reach age five or six. Before reaching first grade, parents are strongly encouraged to have their children receive a full eye exam to make sure the child has no visual problems as they start elementary school.

Eye exams for young children are important because vision problems can negatively affect a child’s performance in school long before you are aware of the issue. The American Optometric Association reports that 5 to 10 percent of preschoolers and 25 percent of school-age children are diagnosed with vision problems once they receive proper eye care. Experts are always stressing the significance of appropriate early education and full participation from youngsters in programs and learning that will become a foundation for critical skills. Children risk not being able to fully participate if they are experiencing undiagnosed visual impairments. An early eye exam and regular eye care for children can alleviate this potential problem.

Identifying eye problems early is crucial to the child’s learning and development in school. A child with poor vision may have difficulty with seeing text and comprehending words causing difficulty in reading. No parent wants their child to be frustrated with reading, especially when most vision problems are easily fixed with glasses. Unable to explain problems in a group, children may choose not to volunteer for reading in class out of embarrassment, or opt out of picking a library book because it’s hard to see. This will negatively affect academic achievement and the enjoyment that comes with reading for many children.

Other symptoms of learning-related vision problems include headaches or eyestrain, short attention span for visual tasks, difficulty identifying or reproducing shapes, poor hand-eye coordination, and developmental delay. Talk to your family eye care professional about scheduling eye care visits for your children. They will be more than happy to answer any questions you may have about your child’s eye health, and let you know when is a good time to start doing regular check-ups.

April Showers Bring May (and More) Allergies

Spring has arrived! The birds are chirping, the days are getting longer, and suddenly you’re experiencing itchy and watery eyes. Seasonal allergies affect an estimated 50 million people in the United States, making the spring season a little (or a lot) less pleasant for many Americans. Up to 30 percent of adults and up to 40 percent of children report having problems with seasonal allergies. That’s no small amount of people with itchy eyes and runny noses!

Spring is what comes to mind when most people think of seasonal allergies, but allergies are not limited to April, May, and June alone. Seasonal allergies can be a disruption almost any time of year, depending on what causes your allergies and where you live. Learning how to cope with seasonal allergies and treat the symptoms can improve your daily life and make nice weather more enjoyable.

How do you combat seasonal allergies? There are some tips you can use to fight seasonal allergies. First, know what triggers them. You’re not going to frolick in a field of goldenrod if you know that it causes an allergic reaction. Ask your physician if he or she can help you narrow down what is causing your discomfort.

The most common seasonal allergens are grass, pollen, and mold. For an allergy sufferer, avoiding these allergens is the first approach to minimize symptoms. It can be difficult to avoid them, however, because they are very common in most parts of the country. Unless you’re able to move somewhere without allergens (or maybe you can live in a bubble), you’ll have to consider some additional options.

Make sure to protect your eyes. Sunglasses can help keep pollen and allergens from entering the eye to an extent, but they also minimize strain on your eyes that can be worsened during allergy season. Protection can also come in the form of wearing a protective mask while doing things like gardening or yard work.

If you must go outside to work or exercise, try to do it early in the morning or later in the evening. These are times when pollen counts are typically lower than during the middle hours of the day. Also, check pollen counts. Many weather apps and sites offer pollen counts as a way to inform allergy sufferers of the worst days for allergies, and other days when it might not be so bad.

Talk to your doctor about an over-the-counter remedy. Not a lot of people report mowing the lawn as their favorite thing to do, but gardening can be very satisfying, and a fun way to get dirty, make your yard more beautiful, or even save money by growing your own food. Seasonal allergies make rustling around in the weeds nearly impossible, however. No one wants to spend their time in nature rubbing their eyes! Your physician can give you advice on medical treatments for allergies and medication that may be available to help you keep your routine and pursue your hobbies without too much disruption.

On days when the pollen count is high, sufferers may choose to stay inside. Itchy eyes can be painful, making it difficult to accomplish everyday tasks like working on a computer screen, watching TV, or even just focusing on small details for a prolonged period of time. With many people working behind a computer for their job, just imagine the productivity that could be gained if eye-related allergies were eliminated! Thankfully, you can help keep indoor air quality clear so you can live comfortably and get your work done indoors. Simply try an air purifier. They help to reduce allergens from the air, and keep those pesky particles out of your nose and eyes. Also, make sure the air filters on your heating and cooling units are changed or cleaned regularly. Special filters exist for allergy sufferers, and they can help improve indoor air quality when changed regularly.

In addition to cleaning the air, wash the dog, your hair, and your clothes. Pollen and other allergens can easily stick to clothes, pets, and even you. A regular wash will prevent allergens from sticking around this allergy season.

The best way to combat the change in seasons is to avoid the allergen as much as possible, refrain from itching your eyes, and use artificial tears to wash away airborne allergens when necessary. Talk to your physician and eye care professional if seasonal allergies are getting in your way.

Cataracts Awareness: What You Need to Know

Cataracts occur when the lens in one or both of your eyes becomes cloudy. Usually this happens with age, and the condition is very common in older people. More than half of all Americans will experience symptoms of cataracts by the time they reach 80.

Why Does it Happen?
The lenses in our eyes are made mostly of water and protein. The protein in our lenses is arranged in a way that makes the lens clear. Our lenses have to be transparent for the structures in our eyes to focus properly and display crisp images. When cataracts form, it is because clumps of protein build up and reduce the light that reaches inside our eyes. Also, as lenses age, they can become discolored and take on a yellow or brownish tint. Gradually vision is affected by this shading along with the cloudiness that can cause vision to blur.

What are the Risks?
Other than normal wear and tear of aging, there are several factors that increase your risk of cataracts. Those include:

• Diseases including diabetes
• Smoking and alcohol use
• Environmental factors including high exposure to sunlight and UV rays

What are the Symptoms?
Most people will notice the cloudy or slightly blurry vision as cataracts start to form. Additionally, people may realize that colors seem faded. Your prescription may change frequently. One major symptom that can pose a threat to your safety is poor night vision and difficulty seeing at night. The cloudiness can cause headlights and other bright lights at night to glare or appear with distracting halos.

What is the Treatment?
Thankfully, there are options for people living with cataracts to see clearly again. In early stages, new glasses, larger print or magnification, and changing environmental surroundings like lighting can help. If these are not sufficient, or if the cataracts get worse, surgery may be an option. Surgery can remove the affected lens and replace it with an artificial one that is crisp and clear.

If you are experiencing any of these symptoms, an eye doctor can detect cataracts with an eye exam. Generally, a visual acuity test, dilated eye exam, and tonometry can aid the doctor in making this diagnosis. Contact us if you have questions about this or any other eye condition!

Healthy Vision is More than 20/20

Taking care of your eyes includes more than going to a yearly exam and wearing an up-to-date prescription. Although both are certainly important, there are many more things you can (and should) do to make sure you’re preventing eye problems and protecting your vision.

Diet and nutrition play an important role in the long-term health of your eyes. Certain vitamins and minerals have proven necessary for good vision while also protecting against eye diseases. A diet high in dark leafy greens such as spinach, kale, and collard greens provides us with lutein, bioflavonoids, and beta-carotene. Omega-3 fatty acids are great for those who suffer from dry eyes. Omega-3s can be found in fish, fish oil supplements, flaxseed, and walnuts. Vitamin A, C, D, E and zinc can be consumed through foods such as eggs, sweet peppers, milk, almonds, and beef. Consumption of these foods high in vitamins may reduce the risk of macular degeneration, cataracts, blindness, and dry eyes, among others.

Full-body physical exams are also important. Physicals check for diabetes and high blood pressure. These conditions can lead to diabetic retinopathy, macular degeneration, glaucoma, and ocular hypertension if left untreated.

Shielding your eyes from the sun is important, but many people believe it is just the tint of sunglasses that offers protection. In actuality it’s the UV-blocking abilities of sunglasses that guard your eyes from damage. Make sure that your eyewear is dark enough to keep you from squinting into the sun when you’re outdoors, but also check that your glasses have a UV coating. Some sunglasses have an inexpensive UV coating that rubs off over time, so your best bet is to purchase a reputable brand that offers a durable coating or is manufactured into the lens itself and will block 99–100% of UVA and UVB rays.

The number of people in the United States who smoke has been declining for several years, and now just 18% of people in the US smoke. Unfortunately, smoking still accounts for 480,000 deaths each year, and smoking increases several risk factors for poor eye health. Smoking doubles your chance of developing cataracts, a clouding of the eye that is the leading cause of blindness. Also, age-related macular degeneration (AMD) causes blind spots and impairs vision, and smokers have a three-fold increase in their risk of developing AMD. So quitting smoking is crucial for your overall health, but also to protect your eyesight.

Most people know that they should be getting twenty minutes of exercise three times a week, but eye health is yet another reason that you should get moving. Regular exercise is linked to retina health. Plus, sufficient exercise along with a balanced diet can help prevent other medical conditions that put your eyes at risk.

Aside from these things, being aware of your family’s health history is another big factor in eye health. Your physician and eye care professionals can help you check for symptoms that may be signs of known health problems common to your family, and can suggest prevention tips as well as early intervention if you discover there is a problem.

If you notice any changes in your vision—things like haziness, cloudiness, double vision, difficulty seeing at night—see your doctor right away. A healthy lifestyle, regular checkups, knowing your risk factors, and basic protective measures will help you keep your eyesight clear for as long as possible.

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