Category: Eye Health News

Lenses that darken automatically when exposed to various levels of light are called photochromic or light-adaptive lenses. This technology was discovered in the 1960s, but it didn’t really catch on until the 1990s. The convenience of photochromic lenses is huge: they’re basically like getting two complete pairs of glasses—regular glasses and sunglasses—in one!

How the technology works is pretty cool. In glass photochromic lenses, silver compounds are embedded into the lens material. When exposed to varying levels of sunlight, the compounds go through a chemical change that increases their size, allowing them to block out more light. Once the bright sunlight subsides, the molecules return to their normal size. Plastic light-adaptive lenses use similar photochromic molecules to create the darkening effect. The reaction that causes the material to darken as it absorbs varying levels of light is completely reversible which is why the lenses go back to clear or only slightly tinted when the wearer is out of bright sunlight.

The only issue you may encounter with light-adaptive lenses is that the photochromic reaction depends to some extent on temperature. In very hot weather, they may not darken all the way. When you first step into the sunlight, the darkening effect happens in about a minute. Over the next several minutes, they may darken just a little more, until achieving their final darkness after about 15 minutes (which depends on the brand and material of lenses). The first reaction will be drastic and give you more than enough light protection to continue into the sun with your vision protected.

If the final darkness of regular light-adaptive lenses isn’t dark enough for what you need, photochromic sunglasses can help. Their darkness when not in the sunlight is still darker than normal glasses. For that reason, most people don’t use these as their only pair of glasses because they won’t see as well indoors. They are a great option for people like drivers, for example, who spend a large part of their time shielding their eyes from sunlight and can wear their backup glasses in low-light settings. The other reason they’re good for drivers is that most windshields block out the UV light that causes the darkening reaction. With a UV-blocking windshield, bright light coming through your windshield will not cause your lenses to darken, leaving you squinting and straining.

There are some other interesting uses of photochromic technology. One medical application involves tinting for certain shades of red. These lenses can be used for various eye conditions including macular degeneration. Of course, there are further recreational uses of adapting tints, too. Red and green shades are used to make a fashion statement, but yellow and amber tints can be used in hunting and sporting glasses to help increase contrast, especially when it is cloudy. Tints can be applied and used in adaptive lenses in just about any color. Want to see the world through rose-colored glasses? It’s possible!

Talk to your eye care professional to test a pair of light-adaptive lenses and see how they’ll help make your everyday life a little easier.

Squinting into the sun and focusing in bright light is very hard on your eyes. Eye care professionals stress the importance of sunglasses and shading your eyes to protect your vision, but many people aren’t aware of the benefits that come from polarized lenses. They’re not just for fishermen to see into the water!

When you’re not on the dock or deck of your boat, you will continue to see the benefits of polarization. Polarized lenses can help cut glares off of surfaces like the road in front of you or the hood of your vehicle. Even bright light outdoors or through windows can be mellowed with polarized lenses.

The reason that polarized lenses work is that they cut out certain waves of light. Normal light tends to go in all directions, but light that bounces off of a surface tends to “polarize” and align itself horizontally. So sunlight beating down on the water doesn’t appear as ambient light once it bounces off the water, because it hits that reflective surface and bounces up, glaring into your eyes. Polarized lenses are specially made with a vertical polarization so that they cut out that intense reflected light and let you see more of the natural light you’d see if there was no glare. Pretty cool, right? You can even experiment with glasses to see if they’re polarized by holding them out and rotating the lens to see if the glare lessens or not.

Some people may notice instances where polarized lenses are not helpful, however. Cell phone screens, LCD and GPS displays can be more difficult to read. In some cases, much brighter light is something you need to see, like in downhill skiing. A bright patch alerts the skier to ice, and polarization would make it harder to see. But most everyday skiers and snowboarders would like to ease the bright light reflecting off of the snow if they’re not in icy conditions. Other than a few rare occasions, polarized lenses can do a lot to improve your vision for many applications. Ask your eye care professional for help deciding if polarization is right for your eyewear.

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.

It’s the end of the week and you’ve only got a few hours left before the weekend.  As you try to finish the last of your tasks, you find yourself unable to focus—not just mentally, but physically. You have trouble seeing the screen in front of you. Maybe your vision is blurry or your eyes start to burn. These are symptoms of computer vision syndrome.  

Computer vision syndrome is simply the name given to a group of symptoms and problems associated with overuse of computers and strained eyes from excessive computer use. It’s becoming a more common problem as more people work in offices behind computers, and rely on tablets or smartphones instead of paper. These devices have helped make us more productive with faster communication and easier recordkeeping, but the reliance on electronic screens in front of our faces can also be a problem for our eyes.

There are many things you can do to prevent or relieve the symptoms of computer vision syndrome. If you wear glasses, make sure your prescription is up to date.  If you do not wear glasses (or if you wear contact lenses that you’re sure are an appropriate prescription for you) yet still experience discomfort while on a computer, computer glasses may be what you’re looking for.

Computer glasses are different than traditional eyeglasses or reading glasses. Due to such a short distance between your eyes and the computer screen, distance eyeglasses and reading eyeglasses may not be as effective for your eyes. They’re not necessarily meant for focusing for longer periods on the intermediate zone of vision. Made specially for viewing a computer screen, computer glasses help you focus on this very zone where your monitor sits, making daily use much more comfortable.

Without a proper prescription or an aid like computer glasses, those experiencing blurred vision may end up leaning forward in order to see. This can negatively affect posture and cause even more strain on your body. In addition to eye health, it’s very important to have a healthy workspace and comfortable posture.

Because computer glasses have a modified lens, they give you the most comfortable view of your computer screen.  For maximum viewing quality, the lenses should include anti-reflective coating. Tinted computer lenses are also recommended in order to block out blue light that is emitted from computer screens.

With a decrease in eyestrain, and no more blurred vision or headaches, it’s obvious how much computer glasses can help make you feel better and more productive. Ask your eye care professional if you’re interested in learning more about computer glasses and how they can help prevent computer vision syndrome.

The idea of digital lenses may conjure up futuristic, electronic eyewear that gives you heat-detecting vision and the ability to zoom in real life, but the truth is that digital lenses look exactly like traditional lenses in a side-by-side comparison. There are no batteries involved! Digital lenses, also called high-definition or free-form lenses, are much different when you see through them, however.

Every eye is different, so getting digital lenses vs. traditional lenses is like the difference between getting an outfit off the rack and getting something made especially for your body to fit all of your various measurements perfectly. With high-definition digital lenses, the creation process takes into account the position of your pupil, the angle of the lens in the frames, and the shape of your frames. Many wearers also benefit from the ability to create progressive lenses that give you a similar effect to bifocals, but without an obvious line. Wearers find that their eyes are much more comfortable and it’s easier to adapt to the high-definition vision they have using a more gradual transition.

High-definition digital lenses are made with an optimized computer-controlled scanning process which allows for much greater precision than how regular glasses are made. Conventional tools don’t allow for the same sort of control so they can lead to a perfect prescription for your eyes that still feels like it could be sharper. The way conventional lenses are made will sometimes create spots that aren’t as clear, or a bending effect toward the edges of your peripheral vision because of the shape of your glasses. This is not an issue with digital lenses. You will have better peripheral vision, less glare, and improved contrast sensitivity.

To further improve the creation process, your eye care professional will usually take some added measurements based on your frames. This will ensure an exact fit and tailoring to your eye and eyewear choice.

Further considerations for digital lenses include the question of who can benefit from them. The great thing about digital lenses is that everyone can benefit from them! People with difficult prescriptions, astigmatism, and presbyopia (farsightedness) will see the greatest change between traditionally manufactured lenses and their new, high-definition vision with digital lenses.

The next question is one we hear a lot: but how much extra do they cost? Unlike the price difference between a high-definition television and the old tube models, digital lenses are not too much extra. They are more labor-intensive to create, so typically you can expect to pay about 25–35% more for your lenses. Once you become accustomed to the high-definition lenses and sharper vision, you’ll be surprised how inadequate your old lenses seem!

Talk to your eye care professional if you’re interested in getting digital lenses for your eyewear.

Most people pick either one pair of glasses or one set of contacts, but often find situations where they wish they had an alternative option to their main eyewear. After all, why dress your face in the same outfit every day? Just like having a few pairs of shoes for different uses, or a special purse for evenings out, having multiple pairs of eyewear can be very fun and superbly functional.

There are many reasons why owning multiple pairs of eyeglasses is beneficial. Clumsy or not, you never know what could happen that would cause you to break or lose a pair. Unlike ripping a pair of pants or losing a shoelace, not being unable to see is quite a problem! Although some eye care providers may be able to create glasses in a very short amount of time, you don’t want to be stuck either unable to see, or in an old prescription that will hurt your eyes while you wait for your new eyewear to be created.

Maybe you know in advance that you’ll need a different type of eyewear for a specific activity and want to get fit for your specialty eyewear. Eyeglass wearers need at least one pair of regular glasses, but many also have a backup pair of glasses and may opt for a pair of sunglasses, too. Contacts tend to be the go-to for sporting enthusiasts who need varied functionality for their sport, but there are also prescription options for eyewear used in watersports, winter sports, driving, outdoors, and other activities.

Other specialty types of glasses that you may need are computer glasses or specialty eyewear for work or hobbies.  Those that work long hours on a computer could benefit from investing in a pair of computer glasses. These glasses aid in preventing eyestrain, as they are designed specifically for the distance at which you view a computer monitor. They can cut down on glare and blue light, too. There are many options available for safety prescription glasses for work, and your employer may cover them if you need them for your job.

Occupational lenses can be helpful for those who wear bifocals because holding your reading material out far away from your face is not exactly practical nor comfortable. For those whose hobbies include close up work, reading glasses may be helpful for magnification.

Of course, the fashion-forward will also enjoy having multiple pairs of glasses to go with different looks. It is tempting to pick up a very colorful pair of funky frames to give yourself a signature look, but you may wonder if the bold look would feel awkward in other settings, like a serious family function or job interview. If you get more than one pair, you can be more creative with one of the frames and a little more conservative with the second pair. Unless you have a certain kind of prescription, the option of contacts is also great. They’re very practical and versatile. Some contact lenses even offer color-changing ability to give your eyes a totally new look.  

Just like the way different accessories make you feel fancy, professional, or casual, glasses and contacts can do the same. Check your vision benefits to see what coverage is offered for additional eyewear, or ask your eye care professional about price breaks on ordering multiple glasses and contact lenses.

Picking eyeglasses can be a difficult process of trial and error, especially if you haven’t done it many times before. The problem is that, unlike shopping for clothing where you may have a good idea of what fits you and what your favorite colors and patterns are, people can sometimes be vague on what they want for glasses (or have no idea at all). Few people know the most important factors for getting the right glasses for you: the shape of your face and which glasses will accent that shape, color and design options available to fit your preference, and features that will work best with your lifestyle.

Instead of standing in front of racks of frames and trying them on for what could be hours, consider these things first. Ask an observant friend or your eye care professional if you need help.

Which glasses will look best on you is most reliant on the shape of your face. Take a head-on look in the mirror and notice the shape of your face. Is your face taller and more arrow, or shorter and rounded? Is your face more like a diamond, or maybe a triangle shape? Is the bone structure angular, or do you have soft curves? Once you narrow that down, it’s easier to start shopping. Sometimes it helps to do an internet search and see examples of different face shapes and see which one most closely resembles you.

If your face is small, large frames will make your face look even smaller, and your features will get lost behind your glasses. If you have a larger face, small glasses will look out of proportion and make your eyes appear small. Rounded glasses soften an angular face, but a soft face can look balanced and cool with an edgy pair of angular glasses. It may take a few tries to hit on what style of glasses look good on you, but usually there are several models that will look sharp. You can narrow down your selection further once you decide on the general style that you prefer.

You can also look at trends for frame styles based on age. There’s no reason that a young person can’t wear rimless glasses, or a senior can’t wear something bright, but we tend to see trends that vary by age group. Younger people are choosing old-fashioned styles that have become popular again. Vintage styles like horn-rimmed, Wayfarer, and Clubmaster glasses have become cool unisex styles for younger people who want a classic look. Older women are making fun, youthful looks with black frames and unique, funky shapes that are creative, but still convey their professional status. Older men in particular might like frameless and very thin frames that have a mature and barely-there look.

Next, think about your personality and fashion sense. Are you the kind of person who would enjoy something bold, or do you tend to shy away from being the center of attention? Don’t be afraid to be creative with your selection if it suits you. Many frames come in patterns like plaid or animal print, or offer clear or other modern materials that will make your glasses pop.

What color will look best with your skin tone, hair, eyes, and apparel? Do you have a varied color palette for clothing, or are most of your clothes in similar colors? If you don’t plan on buying a new wardrobe, it’s a good idea to factor in your apparel as well as the overall tone of your skin and hair. Do you wear blue jeans and lots of cool greens, grays, and purples, or are you a more summery, bright yellow and orange palette? For skin tone, warmer colors would be a pink or yellow skin, whereas olive skin falls on the cooler side. Someone with rich brown hair, a more yellow skin tone, and coppery brown eyes might look strange in cool blue frames, for instance.

How dark or fair your skin is will also have an effect on your choice. Darker skin looks good with light colored glasses for a nice contrast, but fair skin looks better with a neutral tone that won’t make them look washed out. People with a medium skin tone can get a slick look with solid, bright colors.

Finally, make sure that you pick glasses that work for your lifestyle. If you’re big on adventure or you have young children who might be after your eyewear, ask about frames that are more durable and able to bend without breaking. Do you usually have to look professional, or can you be casual on a daily basis? If you’re getting one pair of glasses and not multiple pairs, you’ll need to be sure that your final pick can fit your needs and normal daily setting.

If you’re getting ready for your visit and will be picking glasses, wear an outfit that you usually wear, and do your hair and makeup in a way that’s typical for you. Ask your eye care professional for help if you want a second opinion, or get their assistance to narrow down some options. Let a professional help you create a new face!

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.

People are always touting the benefits and the risks of social media, videogames, television, and other screen activities. It’s common to hear about someone giving up social media for a period of time just to see if they are able to kick what they consider an ‘addiction.’ New Year’s resolutions are often to read more and spend less time at a computer or on a smartphone. These may seem like grown-up problems, but adults and teens aren’t the only demographics spending a large part of their daily routine behind a screen. Children barely old enough to move a mouse are using computers and devices for recreation and learning every day.

In 2009, kids in grades 7–12 reported spending an average of more than 90 minutes a day just sending or receiving texts on cell phones. In 2011, 50% of children under eight-years-old reported having access to a mobile device like a smartphone or tablet. Children under two watch 53 minutes a day of television.  

Should all screen time and computer usage be cause for concern? Not quite. Consider this: studies have found that children who use a computer at school and at home perform better on tests of school readiness, visual motor skills, gross motor, and cognitive development. This positive effect seems to diminish if you look at children’s screen time beyond physician-recommended daily limits, however. Excessive screen time does not help children learn, and overuse has been shown to put children at risk for vision problems.

Children aged 8–18 reported in 2009 that they spent more than seven hours a day devoted to “entertainment media” including computers and videogames. That makes screen time a full-time job! Pediatric eye doctors are warning parents that this sort of heavy screen time is putting children at risk for early nearsightedness, among other possible issues.

According to the National Eye Institute, over the past 30 years the prevalence of nearsightedness has increased from 25 percent to over 41 percent. This is an increase of more than 66 percent. No one can be certain if this increase is caused by screen time, but many professionals are concerned that there may be a connection.

The longer children are exposed to a computer screen, the greater their risk is for developing computer vision syndrome. Computer vision syndrome is the term used to describe problems associated with focusing on an electronic display for excessive, uninterrupted amounts of time. The risk is increased because children’s eyes are not as well-developed as adults. It’s easier for children to experience these problems because they often lose track of time, are assigned lots of homework to do on the computer, or may not realize that they should be taking frequent breaks. Additionally, children are notorious for sitting very close to screens even if they have perfect vision—a position that strains the eyes and the rest of the body.

Parents should pay careful attention to how long a child spends with electronics. Set limits and help them develop good habits for how to use their devices. Talk to your eye care professional to discuss your child’s media habits and determine if you should change how they interact with electronics for optimal eye health.

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.