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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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Michael Elliott, MD, head of the Department of Pediatric Orthopedics and Scoliosis, answers some common questions about bone fractures. Is there a difference between broken bones and fractures? No, these are two different names for the same injury. Of course the common term is a broken bone. Using either name will describe your concerns. Medical personnel typically describe a broken bone as a fracture to a specific bone. For example, a broken wrist is also a fractured distal radius. To clarify, this describes the injured bone and the precise location. How do I know  if my child has broken their bone? Many times children will fall and complain of their arm or leg hurting. In most cases the pain goes away and the child will return to their activities. When there is a deformity to the limb (curve in arm) and the child is complaining of pain, it is probably a fracture. If the arm or leg looks straight, look to see if there is any swelling or bruising. Both are signs of a possible fracture. Finally, if the limb looks normal but the child continues to complain, gently push on the bone. Likewise if it causes the same pain, then they likely have a fracture and should have an x-ray. My child fractured their growth plate, what does this mean? Growth comes from this area of the bone. In detail, these are located all over the body but typically at the end of the bones. With this in mind, fractures to these areas can result in the bone growing abnormally. Because of potential shortening of the arm or leg, or bones growing crooked, it is important to follow fractures closely (up to 1-2 years or longer). It is better to identify a problem early. Small problems can be treated with small surgeries. What if the bones of the x-ray do not line up? Because children are growing, unlike adults, their bones will remodel and straighten with growth. The amount of remodeling occurring depends on a child’s age, the bone fractured and the location. In many cases an angled bone will grow straight over the course of a year. For this reason, someone with experience in caring for children needs to follow bone growth. How long does it take fractures to heal? Factors deciding when a cast can come off include: Child’s age. Bone fractured. Fracture location. Young children heal faster than teens, teens heal faster than young adults, who heal faster than older adults. In young children most fractures heal in 4-6 weeks. However, teens generally take 6 weeks to heal, and adults can take much longer. Although your child  is out of their cast, it may not be healed completely to return to all activities. Placing a splint is during this time is common. This typically gives them added protection for several weeks after their cast is removed -  in case they forget their limitations. What if my child is still limping? Whether a child is in a walking or non-weight bearing cast, removing it often leaves them stiff and sore. Therefore many children will walk as though they still have a cast in place. In most cases this resolves in about three weeks. Regardless, if your child is still limping or walking abnormally after three weeks, contact the treating doctor. They may benefit from physical therapy or a repeat evaluation.  (This article was original published in the July 2019 issue of South Reno Kids & Sports.)

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