Researchers at the Barrow Neurological Institute at St. Joseph’s Hospital and Medical Center in Phoenix, Arizona have discovered that optimizing light sources may assist the human brain in better interpreting visual information. This is good news for people who suffer from computer vision syndrome, as researchers have found that optimally tuning light emitting sources can relieve strain and increase visual comfort.
Light emitting devices such as computer and television screens, light bulbs, and even candles, have a flicker rate. Researchers investigated the way the human eye perceived temporal modulations of light to uncover at which rate vision is most comfortable. As it turns out, the faster a flicker rate, the less the flicker itself is perceived by the eyes, making high flicker rates much more comfortable. This suggests that increasing the brightness of a screen, thus increasing flicker rate, can ease strain without increasing power consumption. A win-win for both your vision and your pocketbook.
Experiments were conducted into two contradictory theories of how bright a light appears: Bloch’s Law and the Broca-Sulzer Effect. While researchers have been studying temporal vision for over 125 years, this was the first experiment to control for all known forms of criteria. The initial findings are encouraging and will be elaborated on as more information becomes available.
Computer Vision Syndrome
Computer vision syndrome may cause symptoms such as:
- Eye strain
- Difficulties focusing
- Blurry or double vision
- Neck and shoulder aches
Treating this syndrome is typically done with a combination of glare reduction screens, eye exercises, and prescription eye wear. With this new information from the Barrow Neurological Institute, your eye doctor may now also include adjusting the brightness on your computer, but this is best determined by an experienced ophthalmologist.
If you would like to schedule a computer vision exam to increase your visual comfort, please contact an eye doctor in your area today.