Q: What can I do about Digital Eye Strain?
A: We can help! There are various eyeglass lenses and lens coatings for people of all ages to relieve digital eye strain and ease fatigue after extended reading or computer use. Lens treatments, such as anti-reflective and blue light blocking coatings, protect your eyes and increase comfort. We also prescribe many different types of contact lenses to reduce reading discomfort and make it easier to switch focus from near to far.
Q: Does reading on my smart phone or tablet in the dark damage my eyes?
A: Reading from a tablet or smart phone in the dark is okay for your eyes, as long as it's not for a long period of time. There is good lighting from these devices, with good contrast. There is, however, blue light emitted from these devices. Blue light is a short wavelength light, with high energy that may cause damage to the structures of the eye if exposed for a long period of time. As well, studies have shown this blue light can disrupt melatonin production which is required for a healthy sleep cycle. Optometrists recommend limiting screen use during the last hour before bedtime.
Q: I work all day on my computer. How can I reduce the strain to my eyes?
A: Usually we recommend that the height of the monitor should be level with the tip of your nose. The screen should be 26 - 30 inches away from your eyes. You can prevent glare from the screen and the harmful effects of blue light by wearing anti-glare lenses and blue light protection. In addition you should follow the 20-20-20 rule. For every 20 minutes of computer use, you should take a break for 20 seconds by looking at an object that is 20 feet away from you. If you feel that your eyes are suffering from computer use, please call to make an appointment so we can evaluate your condition.
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.
Q: Is too much computer or hand-held device use bad for my child’s eyes?
A: The last few years have seen a radical shift in how our children use their vision. More and more time is spent looking at an electronic screen; TV, computer, cell phone, game device, and so on. Vision scientists have long pointed out that excessive near point tasks can lead to increased myopia (nearsightedness) in children, eyestrain, and headaches. Combined with the potentially damaging effect of the blue light these screens emit, you have the possibility of a dangerous situation. We recommend a common-sense approach. First, limit the time your child has to electronic media. Psychologists, educators, and doctors all agree: too much is not good. Second, practice the 20/20/20 rule. For every twenty minutes of near point tasks, take twenty seconds and look at something twenty feet or more away. In short, take frequent rest breaks. Third, use lenses that are designed for your particular activity. Having the correct eyeglass or contact lens prescription is always the place to start. There are lenses and coatings that not only provide the proper focus, but also block unwanted glare and limit the amount of damaging blue light.
Q: What are progressive computer glasses?
A: Progressive lenses let people clearly see objects at multiple distances by incorporating a prescription for distance, midrange, and near vision. Since they are used full time for all activities like driving and watching TV, the upper portion you see through when looking straight out is for distance vision; you must lift your chin a little to see the computer through the midrange portion. Progressive computer glasses, however, are made for heavy computer use. When looking straight ahead, your eyes focus on your computer and when you look down, you can read. Some lenses can focus out 5 feet, others out to 10 feet. Generally speaking, progressive computer lenses are for computers and reading due to their larger midrange zone and are not recommended for driving. They can be perfect for anyone who spends long hours in front of a monitor.