Normal aging can increase the chance of a color
vision problem, and the color vision problem may change during a person's life.
As the lens in the eye ages, the lens darkens. It becomes more difficult to
see the difference between dark blues, dark greens, and dark grays.
Side effects of certain medicines can cause temporary or
permanent color vision problems.
Today's teachers make full use of computers, interactive whiteboards, digital devices, and even 3D technology to enhance the learning environment. Forty percent of teachers use computers for instruction, and at least one computer is in 97% of all American classrooms. That adds up to a lot of screen time for kids who also watch TV or play on the computer at home. But is it harmful to a child’s vision?
Parents are worried. Nearly a third say they’re concerned that computers and handheld electronics...