Q: What is blue light and why is it dangerous?
A: Blue light is part of visible light and has a wavelength close to UV rays on the light spectrum. It is naturally produced by the sun, given off by fluorescent light bulbs, and emitted by LED screens on computer monitors, tablets, and smartphones. The eye's natural filters do not block blue light and chronic exposure may increase your risk for age-related macular degeneration. Evidence also shows that blue light exposure can lead to sleep problems.
Q: My child is struggling in school. Does he / she need an eye exam?
A: A comprehensive eye examination by an optometrist can often determine if there are visual issues interfering with a child’s ability to perform well in school. Many visual symptoms, some obvious, others less so, can contribute to a child’s poor academic achievement. The most common symptoms to watch out for: blur at distance or near, skipping or re-reading lines or words, reduced reading comprehension, difficulty shifting focus from near to far or far to near, difficulty copying from the smart board, double vision, closing or covering an eye when working at near, headaches -- especially in the forehead, temple, or eyebrow regions, difficulty attending to near work or an avoidance of reading, poor spelling, misaligning numbers in math, unusual head or body posture when working at near. Some of these issues can be alleviated with a good pair of eyeglasses while others may require vision therapy. Vision therapy, like occupational therapy or physical therapy, is a systematic program where the body, in this case the visual system, can be retrained and strengthened to improve it’s ability to function.
Q: Do I need to use an anti-glare filter on my computer screen?
A: Anti-glare filters for the computer can be effective at reducing reflections from the computer screen, which may improve comfort for some. However, computer screen anti-glare filters will not help if you have eye fatigue due to visual problems associated with the constant focusing and refocusing of the eyes while working on computers. An evaluation with your eye doctor may determine that you may need prescription computer eyewear.