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Since the COVID-19 pandemic, more people are working from home than ever before, leading to a rise in digital screen time. Between spending eight or more hours staring at a computer screen, and some downtime hours spent looking at a smartphone or watching TV, it’s almost inevitable to feel some adverse effects at the end of a day. Blue Light Effects vs. Digital Eye Strain Blue light is all around us, and the most natural source comes primarily from sunlight. Other forms of blue light are artificial and emitted by digital screens including LED TVs, smartphones, tablets and computers. Surprisingly enough, research shows blue light can actually have health benefits such as promoting alertness, boosting memory and cognitive function, elevating mood and regulating circadian rhythm. However, studies indicate that an excess in blue light exposure can lead to depletion of melatonin production, a hormone that regulates our sleep cycles. In today’s eyewear industry, blue light glasses are one of the more popular items purchased by consumers. Companies who sell the glasses claim they help with reducing or eliminating digital eye strain, while also increasing natural melatonin secretion to get a good night’s sleep. Other than their slight yellow tint to filter out blue light, they mostly look like regular glasses and come in many different stylish frames. You can find blue light glasses through various eyewear retailers. Most adults have experienced digital eye strain. Common symptoms of digital eye strain include headaches, blurred vision, irritated eyes, and fatigue. Many believe that digital eye strain is caused by overexposure to blue light, but medical vision experts say that is not the case. “Digital eye strain is related to how we use our digital devices, not the blue light coming out of them,” says Mitchell Strominger, MD, a neuro and pediatric ophthalmologist with Renown Health. Do Blue Light Glasses Even Work? Since blue light glasses aren’t medically proven to help with digital eye strain, you’re probably wondering if they’re even worth using. “If you’re one to binge a TV show or scroll though social media before bedtime, the blue light from those digital screens can disrupt your circadian rhythm and cause you to lose sleep, which can ultimately lead to other adverse health effects,” says Dr. Strominger. “While more research is still needed, some studies have shown that blue light glasses may prevent melatonin suppression and increase quality of sleep. There is no harm in trying them out and seeing if they work for you.” As for preventing digital eye strain, Dr. Strominger shared several helpful tips: Try using the 20-20-20 rule, which entails looking away from your screen and looking at an object 20 feet away for at least 20 seconds. Sit at an arm’s length (about 25 inches) away from your screen. Adjust the brightness and contrast of your screen, especially before bedtime. There is a night mode setting on most smart phones you can use. Reduce your screen time whenever you can and give your eyes a break.

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You might think worsening eyesight is inevitable as you age. But the truth is, there are easy things you can do to keep your eyes in tiptop shape for years to come. Clear vision is an essential part of overall health and there are daily habits we can adopt to keep our eyes seeing clearly. Mitchell Strominger, M.D., a registered ophthalmologist with Renown Health specializing in pediatric ophthalmology and neuro-ophthalmology, offers some everyday tips to keep you focused on eye health. Know your family’s vision history Look to your parents and grandparents for clues about the future of your eye health. Were they near-sighted at a young age? Do they have a history of eye crossing or a lazy eye? Did they develop glaucoma or macular degeneration (AMD)? Some genes have a strong association with eye health, specifically macular degeneration. AMD is a leading cause of blindness worldwide and the top cause of vision loss and blindness for Americans over 65, according to the Centers for Disease Control and Prevention (CDC). Also be aware certain medical conditions, such as diabetes, high blood pressure and liver disease, increase the risk of long-term eye problems. Receive regular vision screening exams Children under three need vision screening examinations by their pediatrician. A medical concern or family history warrants a comprehensive eye examination by a pediatric ophthalmologist (or general ophthalmologist or optometrist who has experience with children) per the American Academy of Ophthalmology (AAO). Vision screenings should occur every two years throughout adolescence unless pain, eye crossing, difficulty seeing the board or reading, or other eye concerns occur. In adulthood the risk of eye problems increases over age 40, so the AAO recommends regular dilated exams. When your pupils are dilated it allows your eye care professional a more accurate view of your retina and optic nerve, located in the back of your eye. This allows them to look for AMD or other eye problems. Eye diseases can be caught at their earliest stages during a dilated eye exam. “It is especially important to have your child evaluated as soon as possible if there is any concern for eye crossing or lazy eye,” says Dr. Strominger. “The visual system develops in the early years so intervention, whether it be glasses, eye patching to strengthen the vision in one eye, or eye muscle surgery is critical. Children at risk include those who are born premature, have development abnormalities, genetic disorders such as Downs syndrome, or a strong family history and should be evaluated at a young age. Often small problems are not clearly evident and cannot be picked up on routine screening examinations in the pediatrician’s office.” Block the sun, improve your vision Everyone knows not to stare directly into the sun, but indirect ultraviolet (UV) sun rays can cause serious harm over time. According to the National Eye Institute, sunglasses (or a protective UV tint) are a daily must to protect your eyes from: Cataracts (a clouding of the eye’s lens causing blurred vision) AMD - macular degeneration Pterygium (a tissue growth over the white surface of the eye that can cause astigmatism) Look for sunglasses which block 99 to 100 percent of both UVA and UVB rays. You still need sunglasses if your contact lenses block UV rays. Sun rays can damage your eyelids and other tissue not covered by contact lenses. Wearing sunglasses protects your entire eye area. Eat colorful meals Your eyes need vital nutrients to keep them healthy including vitamin C, zinc, beta carotene and copper. A diet filled with citrus fruits and a variety of vegetables provide these essential nutrients. Regularly filling up on fish high in omega-3 fatty acids (salmon, tuna, sardines) may reduce your risk of AMD and help maintain your eye health. Green, leafy vegetables (kale, spinach, collard greens) containing lutein and zeaxanthin are also a must for your dinner plate. Water your eyes Eyes, like the rest of your body, need plenty of water to prevent dehydration. Make sure you stay hydrated and steer clear of smoke to avoid dry eyes and irritation. Hours staring at the computer screen can also make your eyes feel dry or tired. Try regularly refreshing them with lubricating eye drops. Taking frequent computer breaks is also important. Follow the 20/20/20 rule: every 20 minutes, look at an object 20 feet away from you for 20 seconds. Eye makeup can also lead to dry eye as the glands at the base of the eyelashes may become clogged, causing dry eye. Make sure all eye makeup is hypoallergenic and is thoroughly removed with a gentle cleanser for the delicate eye area each day. Stop Smoking (or never start) Smoking is harmful to every part of your body, including your eyes. It's not only linked to cancer and heart disease but also cataracts, AMD, dry eye, optic nerve problems and many other problems. Smoking during pregnancy can also harm the eyes of the unborn child. If you currently smoke take steps to quit and your entire body will benefit.

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Posture is important, but for those children diagnosed with scoliosis (spinal curvature) it can be a difficult issue. The Washoe County School District Student Health Services Department screens 7th grade students for scoliosis as growth spurts often reveal the condition and, if diagnosed early, scoliosis can stop progressing. We asked Michael Elliott, MD, head of the Department of Pediatric Orthopedics and Scoliosis to answer some frequently asked questions about scoliosis. What is scoliosis? There are many types of scoliosis: early onset (occurs before age 10), congenital scoliosis is when the bones of the spine do not form correctly, neuromuscular scoliosis which is due to children’s neurologic and muscle disease, and the most common is Adolescent Idiopathic Scoliosis. The term “idiopathic “ means the exact cause is unknown, although we do know it runs in families. This type of scoliosis occurs in 2-3 percent of adolescents and is mainly seen during their growth spurt. This is why middle school screenings are recommended. Both genders get scoliosis but girls are 8 times more likely to have their curves progress and become larger. What are the signs that my child may have scoliosis? A few signs for parents to watch for are: One shoulder might be higher than the other. One leg may seem longer. A hip may be higher or look more prominent. The waist may not look the same from side to side (asymmetry). The trunk or rib cage may be more prominent on one side or shifted. When they bend forward they may have a bump on their back. How is scoliosis diagnosed? It can be noticed by a pediatrician at a physical, school screening nurse, PE teacher or parents. Once the curve is suspected the child is usually referred to a pediatric orthopedic surgeon scoliosis expertise. At the initial visit the doctor will perform a thorough physical including a complete neurologic exam to assess the amount of curvature. Once the exam is completed the physician will determine if a spinal x-ray is needed. The curve on the x-ray is measured utilizing the cobb angle (a measurement in degrees) which helps guide the treatment. What are common treatments for scoliosis? The treatment depends on the size of the spinal curve and the amount of growth the child has remaining. An x-ray of the child’s hand is used to determine the amount of growth remaining. This allows the determination of the child’s bone age, and based on the hands growth plates it can determined if the child is in their rapid phase of growth. Treatments include: Observation - For curves less than 20-25 degrees. This entails visits every 6-9 months with a repeat scoliosis x-ray. Since scoliosis curves increase only 1-2 degrees per month, and variations in measurements can be 3-5 degrees, an x-ray is not recommended before 6 months. If the curve remains less than 25 degrees the child is followed until their growth is completed (usually age 16-18). Progressing Curve - If growth is finished and the curve is less than 40 degrees, the risk of more curvature into adulthood is small. If growth is completed and the curve is over 45 degrees, the child is followed for several years as these curves can progress into adulthood. If the patient is still growing and the curve has progressed greater than 25 degrees but still in the non-operative range (less than 45-50 degrees) bracing is used to stop the progression of the curve. Bracing - Indicated for curves over 25 degrees but less than 45 degrees. If a brace is required you will be referred to an orthotist (bracing specialist). The orthotist assesses your child, reviews the x-ray and then fits the brace. (Having a brace made usually takes 2-3 weeks.) Once the brace is fit, your child will visit the scoliosis specialist for an x-ray in the brace to ensure it fits correctly. The primary goal of bracing is to halt progression of the curve and prevent the need for surgery. The brace must be worn for about 16 hours per day to be effective. In a recent bracing study 72% of the patients who wore their braces as prescribed prevented the need for surgery compared to the group who did not wear their brace. Surgery: When a curve reaches 45-50 degrees, and a child is still growing, surgery is usually recommended because the curve is likely to continue progress. If a curve is over 50 degrees and the child is done growing surgery also may be recommended. This is because when curves are over 50 degrees they tend to increase 1-2 degrees per year for the rest of your life. As curves get larger the amount of lung function tends to decrease which could cause breathing problems later in life. The goals of surgery are to stop the progression of the curve and safely correct any misalignment. This is accomplished by attaching implants (rods, screws, hooks and bands) to the spine. Bone graft is then placed around the implants to encourage the spine to fuse (grow together). This then forms a solid column of bone with metal rods in place, preventing the curve from changing. Most patients are back to their regular sports and activities six months post surgery.

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